Restoring Thailand's Coastlines: The Promise and Pitfalls of Mangrove Projects

Key Considerations for Restoring Mangroves Site Selection: It is crucial to choose appropriate locations for planting mangroves. Areas that are prone to tidal flooding may not be suitable, as seedlings can drown. Historical mangrove sites may no...
Key Considerations for Restoring Mangroves
Site Selection:
It is crucial to choose appropriate locations for planting mangroves. Areas that are prone to tidal flooding may not be suitable, as seedlings can drown. Historical mangrove sites may no longer be viable due to changes in land and sea levels.
Long-Term Planning:
Restoration efforts should focus on the longevity of the mangrove ecosystem. This includes monitoring the planted areas over time to ensure that seedlings survive and grow into established mangrove forests.
Biodiversity:
Avoid monoculture planting (e.g., only red mangroves) as it can lead to vulnerabilities. Diverse mangrove species should be planted to enhance resilience against pests and environmental changes.
Public and Private Partnerships:
Collaboration between companies and government entities can be beneficial, but it is essential to ensure that local communities retain ownership rights to their land and that restoration efforts do not lead to land grabbing.
Carbon Sequestration:
While mangroves are effective carbon sinks, the focus should not solely be on carbon credits. Restoration projects must ensure that they are genuinely contributing to biodiversity and ecosystem stability.
Monitoring and Reporting:
Companies involved in restoration should commit to long-term monitoring of their projects to demonstrate success and avoid greenwashing. This includes regular updates on the health and growth of the mangrove areas.
Adaptation to Climate Change:
Restoration strategies must consider the impacts of climate change, such as rising sea levels and increased storm surges, which can affect the viability of mangrove habitats.
By addressing these considerations, restoration projects can be more effective and sustainable, ultimately leading to healthier coastal ecosystems.
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One of the big pushes about restoration is restoring coastlines
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with carbon sequestering type
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habitats, but also habitats that will protect the shoreline, will
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increase biodiversity, and will have economic
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as well as environmental impacts for a long time.
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But all of those different reasons to restore
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a coastline, they don't always align. And sometimes
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it gets in the way of actual proper restoration of
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a coastline. So we're gonna talk about Thailand, and we're gonna talk
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about the budding mangrove restoration, and some of the concerns that surround
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it with blue carbon, some private and public
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partnerships, and where and how restoration is
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actually done. We're gonna talk about that on today's episode of the How to
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Protect the Ocean podcast. Let's start the show. Hey
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everybody welcome back to another exciting episode of the How to Protect the Ocean podcast. I'm
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your host Andrew Lewin and this is a podcast where you find out what's happening with the ocean,
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how you can speak up for the ocean, and what you can do to live for a
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better ocean by taking action. This is where you find all things
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about the ocean and you can find out more information if you go
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to the website speakupforblue.com or
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you can also and you can also sign up for new
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news that's happening in and around the ocean and
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some new jobs that are available too if you're looking for a career. So lots of
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things to look for, speakupforblue.com forward slash newsletter
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and then if you just want the regular website with a number of different podcasts on
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it, go to speakupforblue.com. Let's talk about
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Thailand and I want you to just be a little patient, sit back and
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just listen to what I'm going to say for this episode
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because there's a lot to get through and there's a lot of things
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that we have to consider. And I'm really glad this article was written by Carolyn Cowan
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from Among the Bay. And I'm going to link to the article
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in the show notes as well as the description if you're watching this on YouTube. there's
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a lot to know about restoration there's a
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lot that goes into restoration and there's a lot of things that could be good and
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bad when it comes to restoration some of those are the outside
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pressures that come with you know trying to
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do better for the planet we know we are in it right
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now for the the planet, right? We are
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seeing a lot of problems. We have observed climate change on
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countless different fronts, from droughts to wildfires, to
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sea level rise, to increased storm surges, more flooding, more
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rainfall, hotter ocean surfaces,
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like record-breaking. And it doesn't look like it's going to stop anytime
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soon. Some of the things that we can do are restore habitats
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to decrease the effects of climate change and reduce climate change
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and greenhouse gases by sequestering more carbon. But
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what we can also do is protect the coastlines more, just as
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they originally did when these coastlines were intact. They
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provided not only security from tsunamis or storm
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surges, but they provided biodiversity so that
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people can fish and people can live off and enjoy the
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fruits of the labor of having healthy mangroves,
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and also just a stable ecosystem, which again, provides
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security, provides natural resources ability, and
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just makes everything better. Let's be honest, it just
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makes everything better. So today we're gonna be talking about Thailand's
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mangrove restoration projects and their plans, and how
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it can benefit them, but how some of the things that happen through
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restoration, through different pressures and
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different, I guess, opportunities and projects, have not
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been as fruitful as hoped. And so we're gonna talk about that.
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But before we get into that, I want you to understand that
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restoration, one, is expensive. Protection is
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better. It's cheaper, it's longer lasting, and
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it's better. But no matter what you choose, protection, restoration,
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you always have to start somewhere. And even though we're
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gonna be talking about some problems that are going on with these
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plans and with these projects over time, the strategy is the same,
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is to continue to do things, continue to
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restore, continue to protect. Be able
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to find out the problems, adapt to those problems, and be able to
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manage those problems better in the future by
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just switching up the strategy. So none
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of these projects should be vilified. None of
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these projects should be saying, hey, you know what, we can't do this
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restoration because there's always these little problems here and there. No,
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these problems happen when you start to do action. And
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that's what we're talking about today is we're talking about action.
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And that's sort of what I want to focus on is the action.
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And so I want you to remember when I talk about a lot of these
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things, and I identify some of the shortcomings of
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these plans that, you know what, Thailand's doing a great job. The people
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of Thailand are doing a great job at forwarding this
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restoration, okay? So there's a number of things that we need to consider when
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we're restoring. Some things are a little bit higher priority than others,
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but overall, there's still things that you can change and there's still things that you can
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manage. So this is a great article. I highly recommend that you
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take some time and read it. It's something that I
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always love from Mongabay. The authors put in so much detail
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and it's so great. And this article starts off with
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speaking to someone who is uh... disorderly
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the through the keeper of this education center
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unnatural services called the mangrove nature school in
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bangku a village roughly two hours drive south
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of bangkok uh... and so in this uh... summit song
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of groom uh... province i apologize if i'm not pronouncing this
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properly i'm not very familiar with the pronunciation for a lot of
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these places here in in thailand uh... but
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So there's a huge area of,
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well not huge I guess, but larger area of mangroves that are on
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this preserve. It's been preserved for over three decades. It's a
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6.5 hectare or 15.8 acres of patch of
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mangrove forest that is next to this person's village. Being
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able to have that, you have mudskippers, iridescent fiddler
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crabs that flip between the tangled
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roots of a pair of seven and a half meter or 25 foot
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mangrove trees as the tide laps relentlessly beneath the raised
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walkway. So you get a little bit of a description of what happens in there. When
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they start to look at this coastline, they start to see
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a reminder that there is some eroding
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of the coastline that's rapidly eroding. And Thailand's
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Department of Marine and Coastal Resource Management estimates that parts of
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the Gulf of Thailand lose up to 5 meters or 16 feet
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of land to the sea level rise per year. We're going to talk about
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sea level rise as well as coastal development in a little bit. Now
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I want to go a bit into the history of
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Thailand's mangrove areas and
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the sort of degradation that we've seen over
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that time because I think it's important to have sort
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of a knowledge of where they were, where they've been, and how
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it's going right now. So in 1961 there was estimate coverage
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that was at 350,000 hectares
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in 1961 and it dropped to 160,000 hectares by
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1996. So that's a huge, huge drop. So
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in 1996, they realized, hey, hold on a second, we need to build
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up our mangroves because they provide a lot of
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services. So they provide, first of all, security. So
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when a tsunami comes through, the areas that have intact
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mangrove habitats dispel the energy, right?
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They basically dissipate that energy of waves that comes over the
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top and through the mangroves so that by the time it gets to some
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of the villages and towns that are beyond the mangrove areas,
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like that 50 meter swath that they like to keep in Thailand, then
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the energy is a lot less, the destruction is a lot less,
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lives are saved. and it's a lot better. So having an
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intact and healthy mangrove forest is good from
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a, or is great from a security standpoint. It's also great from a
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biodiversity standpoint. There's lots of fishing that can go
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on. It can feed local fishing villages for
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a lifetime and more in generations if you have that healthy area,
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right? Plus you have the diversity, you get a lot of birds. Having
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biodiverse areas is meaning you have a stable coastline.
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Meaning that, you know, when you have all these different animals that
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take part in sort of taking care of
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these habitats, you know, from making sure that invasive
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species get eaten and taken away, or
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that certainly everything is all balanced and stable, then you
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start to have some good things happening there. So
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that's all good from there. So having a biodiverse area, healthy
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mangroves that can help with security is
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a huge, huge impact. Then there's also the carbon
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credits that you can get, that they're a carbon sink. So they sequester
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carbon by continuing to build and regrow
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and regenerate through mangroves, mangrove trees.
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They are a tree, and they tend to sequester four times the
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amount of, up to four times, maybe even more, of regular
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trees that we normally talk about when we talk about blue carbon projects. So
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they are a blue carbon community, a habitat, and something that
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we need to focus on. We did talk, and I'll put the link in the show notes,
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recently with World Economic Forum about
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one of their projects to restore mangroves in a lot of different places in
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the tropics. And, you know, so that it's obviously
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a worldwide and global initiative to do this, but in Thailand,
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it's big. Now, 160,000 acres down in or down to 160,000 acres in 1996. The
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response to that and the increase in
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planting these types of mangroves increased by
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50%. By the time, I think it was 2000 and,
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so here it is right here, or
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I guess right now, 2024, now has 248,400 mangroves. hectares
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so it's a 50% increase of mangrove cover according
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to UNESCO figures which is great that's a 50% of
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coverage from 1996 that's big and
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is a 400 sorry 46,400 of
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those acres are managed for conservation as natural national
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parks or wildlife sanctuaries so that's a big bonus
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so we are seeing an increase in the coverage now
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here's the thing we are seeing a mass
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plantings happening and this is a lot of private and public sort
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of partnerships that are happening where you will get companies who
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are saying hey you know what we've planted a certain amount of trees a
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certain amount of mangrove trees along this coastline and we've done this
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and we've done that and the And it's great and
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you get the companies that are being part of restoring the coastline, protecting
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Thailand, protecting people along those coastlines and
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just the nature of it all, the biodiversity, that
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makes businesses feel good. It also shows that they're doing some good things and
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it's good for their PR. And we've seen in the
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history of Thailand, in the past, we've seen a lot of degradation and
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removal for building like shrimp farms and development stuff.
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And so now to see these coastlines being naturalized is
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a good thing, right? We're starting to see that. And companies that
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are partnering with the government to be able to
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put these programs and have permission to plant in certain areas is
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a benefit, right? To see that. So you'll see a sloth of in
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pictures that this company is putting together of these little mango shoots
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that are about yay big, you know, maybe a foot, foot and a half high, and
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they're being planted in rows and they're like, you know, planted together and
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so forth. And then all of a sudden, They
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forget about it. They stop posting about it. They've planted their stuff, they've
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done their thing, and they stop posting about it. Here's the
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one of the concerns that's coming through, is where these trees
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are being planted, where these mangrove seedlings are being planted. They're not being
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planted in the right areas. They're being planted in areas that gets washed over
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by the tide, and at the time for those seedlings, they get drowned.
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They can actually drown, and they can get destroyed. And so these shoots
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that you see will eventually die because they will they
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will die. They will drown. They won't get enough. They won't get enough air.
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They won't get enough, uh, non coverage of ocean and
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they will dissipate and they will get destroyed. So all that money
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that was put into, you know, grow the seedlings and
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to create the seedlings and, uh, bring them over to certain
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areas, the time it takes and the team building it does for these
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companies and the feel good, all that work, all that effort, all
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that money washed away with the ocean, literally washed
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away. So these efforts are
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not as good as that first preserve that we talked about at
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the beginning of this show, when I went through it, where
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it's like 6.4 hectares of mangrove forest that
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is planted carefully, is planted together so
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that the roots intertwine, so that they're
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stronger together, that are planted in specific areas
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where the ocean's not gonna wash over them as
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they're growing and not gonna kill them. When
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we talk about restoration, this is what I talked about at the beginning, is that there
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are certain places where you will restore, there are certain places where
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you won't restore, and it does not matter if there were mangroves that were
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there before. The fact that there's been a lack of mangroves for
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10, 20, 30, 40 years could make that historic
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site not appropriate for planting
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mangroves anymore or for a mangrove habitat because it changes over time.
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You know, if you don't have mangroves, you don't have the land because that
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gets eroded away from the water, from the ocean, and from the tides coming
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in and out. So you don't have that space. That's
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gone. You know, the fact that sea level is rising in
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a lot of these island areas and the fact that there is less
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of a stability because of lack of mangroves can change an area.
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So something that was historically a mangrove habitat 30 years
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ago 40 years ago even 10 years ago may not be appropriate to
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be a mangrove habitat now and may need to be built up
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which can take a lot more money and a lot more time to do but
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just being just saying hey we're just going to plant these areas
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because this company was going to pay for a lot of that and they want to
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be a part of this that may not be the best area. So there
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needs to be better coordination of planning and the sites that need
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to do this. Now I'm a former GIS guy. I'm still a GIS guy,
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but I used to work in GIS and a lot of times when we talked about
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restoration, we would look at suitable areas.
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We'd have a map of the area, whether it be a coastline, whether it be on land. I
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did a lot of different things. We would look, okay, here
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are the attributes of an area that we're considering to
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restore or a number of areas that we're considering to restore. We would look
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at that attribute and we would look at, we'd basically do like a prediction model
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saying which areas would be the best, would have the best
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success rate of holding on to a mangrove for
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a longer period of time. So, it's not just that you plant it and
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a year later, all those seedlings are gone. It's you plant
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it and a year later, they're still there. Another year later, they're still there. Five
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years down the road, it's growing into a bigger mangrove area.
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Ten years down the road, all right, now we have an established area. We're starting to see more
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biodiversity of ocean animals that are there and mangrove animals, land
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and, you know, we're starting to see like birds, coastal birds and seabirds come
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out. We're starting to see like nursing areas starting to develop, nursery
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areas. These are really important. The longevity of
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that growth and seeing that habitat
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evolve and build on the security
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of that area and the stability of that area is
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great to see, but you have to give it time. It's going to take time. You can't just
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plant for the sake of planting and not being able to come
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back a year later and seeing the fruits of your labor, the fruits of
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the funding that's been put into it, and the actual labor that's been put
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into it. where you plant is a
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big thing. And so there needs to be a little bit better coordination and
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identification of candidate sites that are good to
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restore. So you're not just throwing away money for the sake of
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greenwashing, essentially, right? Because these companies, although they may not
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want to greenwash, they want to see the success, they don't necessarily follow
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the success. So having programs where the companies can be in
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it for the long run, like in it to win it really, to see
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that win and be able to report on that or be able to
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show that through social media or through, you know, talking to their clients or
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whatever business they're in. Being able to show success could
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really further these projects more. And when you have mangroves that
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are established, when you have mangroves that have been around for a while and that provide
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that security, provide that biodiversity benefit, then you start to
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see the social impacts and the environmental impacts quite
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quickly. And that is an important part of
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this area. The second problem that we've seen, and
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I told you to stay with me here, the second problem that we've seen is the
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fact that it's the same mangrove, the red mangroves, that
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are being chosen to basically be
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planted. So now you have a monoculture of habitat
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of mangroves. And some of these areas did not
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have red mangroves in the first place. right? Some
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of these areas had different types of mangroves. But
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the thing is, is that mangroves from a restoration practice is
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easier to grow, is faster to grow and faster to establish no matter where
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it is within, say in this case, in Thailand. So the
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red mangrove can actually grow faster, establish itself faster. So
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there's a good and bad thing in this. The good thing is that a lot of the times,
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from the government perspective, they want to provide security in case a tsunami comes
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in. We don't know when tsunamis are going to come in. The 2004 Christmas
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tsunami was one of those situations where it
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impacted a huge swath of people in Southeast Asia,
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and it killed a lot of people. And if you didn't have mangroves
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in your area restored, You were in trouble. But
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if you did, you weren't in as much of trouble and
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the damage wasn't as bad. And often places
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saving, you know, villages and towns and people. But
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if you, so here's the tugging, the
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pulling and tugging of this or push and pull of this. is
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the fact that when you are trying
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to restore for protection, you want to do it as fast as possible. The
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faster situation here is to have a monoculture of red mangroves to
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put up. This may not be the mangrove of the day. It may
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not be the mangrove that would do better in the soil, in
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the area that is being planted. But it does grow.
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And it's sort of more resilient than other species. So
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you're having this monoculture being built right off the bat and being planted and
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being established. But the good news is that you can start
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planting other species as that sort
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of forest, mangrove forest grows and is established, right?
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So the first thing is to get it up for security. The second thing is
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to prioritize for diversity of mangroves because
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you never know, you know, we've seen it here in Canada a lot of times and
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in the States, once you have like an invasive species come through and there's one
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species of tree that gets affected, it
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will destroy all those species. So you're not going to have forests
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that are a monoculture of
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a certain species, because if that species is affected, that entire forest is gone. So
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it's better to have diverse forests with different tree
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species, just like it would be for mangrove species. I
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don't know much about mangroves and invasive species, and I don't know if that's as
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prevalent as it is in forests here in Canada, but
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it can be pretty devastating. So if there is something like that, that's
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something you have to be careful of. Biodiversity in any
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kind of situation is much better, whether
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it comes from nature, animals, or even people. So we
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should consider that more. Regardless, that is
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one of the downfalls of trying to build and create and
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establish a mangrove forest that is diverse, that
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is long lasting, and that can help. But when you're trying to
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protect for security, you want that 50 meter swath
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of mangrove forest from the coastline that will
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help protect against any kind of tsunamis. So
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that's another one of those problems. Now the
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third and final sort of concern that we have is
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the fact that we're starting to see a lot of companies and a lot of governments start
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to jump on this blue carbon train. And
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the situation of blue carbon is really interesting. From
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a perspective of reestablishing blue carbon
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habitats, so you have mangroves, seagrasses, salt
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marshes, and so forth, these are areas
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that could sequester multiple
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times more carbon than regular
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plants and trees, right? So like land plants and
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trees. So it's important to have these blue carbon habitats along
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the coastline. Now the problem is that they're along the coastline. And a
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lot of times the coastline has been altered in
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many places around the world so that it is good
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for coastal housing and residences or
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hotels and tourism or things like that. But you still
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need those habitats in there, like I said, for security. They have multiple benefits.
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But the blue carbon benefit is that it can sequester more
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carbon, help us with reducing the amount of carbon
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dioxide that is in the atmosphere. So having
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more of those blue carbon habitats planted is better. But
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there's a bit of a greenwashing train, as there always is with a
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lot of private companies who are putting money into projects that
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may or may not be real in some cases, or they could be
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putting into projects where the location,
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just as I mentioned before, may not have been chosen right, but they can say, hey,
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we're doing stuff for carbon sequestration and we're establishing
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more blue carbon habitats, but they don't stay for a long time. Right?
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And so there's a push to do this type of work, but again,
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location matters and trying to figure out which location is
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the best is a big thing. So having more
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blue carbon habitats will be better, but you have to be careful of
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the game of blue carbon. There's also carbon sequestration,
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which is like, do we sink plants? And do we
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sink these seaweed type materials and
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aquatic plants and coastal plants that could absorb
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way more carbon than land plants and trees? And we
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sink them into the ocean to bury that carbon. That
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has not been perfected by any means. And there are very
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few projects that are going on that I know of that are successful in
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establishing that. And it's still in its early stages of
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doing that. We don't know the effect of sinking seaweed
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on mass levels in specific areas, the effect that
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that will have on the deep sea. Just like we don't know what the
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effect is on deep sea mining, on the deep sea, we don't know
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the effect of sinking all the seaweed and what that's going to do in
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the future for our deep sea. So a
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lot of the carbon sequestration, blue carbon, you have to
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be careful, although this is a very big key word within
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the conservation community and the climate change community, we do
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have to be careful and make sure that we are doing it properly. And not just
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for the sake of putting it up on your letterhead, a blue carbon company
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or a company that supports blue carbon habitats, or even, you
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know, the UN or, you know, World Economic
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Forum or big organizations like that, international organizations
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and even even small to medium-sized to large NGOs
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that are getting into this type of practice, they have
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to be careful that these programs are real and these programs are establishing long-term
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blue carbon habitats, right? Because they're not just blue carbon habitats, they
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provide biodiversity, they provide security, these are
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some big to-do habitats. So those are sort
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of the three problems that people have, especially
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in Thailand, when it comes to putting
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this forward. The other thing, there's one more, sorry I forgot to mention,
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has to do with when you have private and public partnerships, you have
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private companies who are buying up swaths of
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land. They have ownership in some cases over that
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land. And so the question comes is, if they pay for
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planting mangroves in specific areas, does that area become
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theirs to own? Or does it go back to the people of
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Thailand? Does it go back to the local villages of the people who live there? Do they
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lose their rights on those lands? Obviously, that's not what is
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wanted. That's not the outcome that's wanted. So people want to retain the ownership
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rights. of their land and they don't want to have
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it go to a company where they can just do whatever they want with
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it and we know how companies are sometimes and many times and
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you know that's something that can be very concerning. So that's sort of
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the final thing that happens. Now overall, planting is
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great. Making sure that we have restoration location
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sites chosen for specific reasons of long-term restoration
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and establishment of mangrove areas will be key
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to ensuring that these mangroves stick around for a long period
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of time. You can have social economic benefits as well
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as environmental benefits. we can reduce climate change, we can
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have more blue carbon habitats along our coastline, naturalize
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our coastlines more, especially in Thailand, and
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just have a better planet after that. A lot of
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work still needs to be done, but there are great people that are doing the
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work in Thailand and across the world, and I think
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it's really great. Now, I know in my audience here, There
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are people who are in the business of restoration, whether it be corals,
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whether it be mangroves, whether it be seagrasses. I would love to hear your
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stories. I would love to interview you on this podcast for your story.
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So if you have a project that you've been working on,
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or you are someone who's been in this field for
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quite some time, I would love to hear from you. Reach out to me on
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Instagram, at HowToProtectTheOcean. I would love to hear your story.
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So that's at HowToProtectTheOcean. And everybody else,
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I'd love to hear what you think of this story, what you think of restoration in general,
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and some of the key concerns that we went through here today. I'd love
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to hear your overall thoughts. You can leave comments on Spotify, on
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YouTube, in the comments section, or you can give me a
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shout out or DM me on Instagram, at howtoprotecttheocean.
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I want to thank you so much for having patience to listen. I know this has been quite
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an intuitive and long episode. We're almost at a half hour right
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now, but it's something that I want to go over for a long time.
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So thank you so much for joining me on today's episode of
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the How to Protect the Ocean podcast. I'm your host, Andrew Lewin. Have a great day. We'll