High CO2 levels are greening the world’s drylands, is that good news?
Release Date: 10/01/2024
Grounded: This pilot quit flying to help the aviation industry change, for the better
Mongabay Newscast
Todd Smith wanted to be a pilot since the age of 5, but an epiphany spurred by seeing a retreating ice cap in Peru revealed that his love of flying conflicted with the planetary harm his industry was causing. “That was the first seed that was planted, and I was witnessing in that moment climate change and mass tourism firsthand,” he says. Today, Smith is co-founder of Safe Landing, an organization dedicated to advocating for sustainable aviation reform to adapt to the realities of climate change and ensure the future employment of airline workers. On the latest Mongabay Newscast, he...
info_outline
Don't call it the ‘high seas treaty’: New oceans agreement should center biodiversity, expert says
Mongabay Newscast
The new BBNJ (biodiversity beyond national jurisdiction) marine conservation agreement is impressive in scope but has since been rebranded by some as the “high seas treaty,” which risks biasing its interpretation by emphasizing the historical, but outdated, freedoms enjoyed by seafaring (and largely Western) nations. Elizabeth Mendenhall of the University of Rhode Island joins this episode to discuss the treaty with co-host Rachel Donald, detailing the fascinating and complicated nature of ocean governance beyond the jurisdiction of states. The BBNJ agreement was designed to resolve some...
info_outline
Global Nature Positive Summit features Indigenous & conservation leaders but gets negative marks on government action
Mongabay Newscast
Just prior to the latest world biodiversity summit (COP 16 in Colombia), a similarly-themed event was hosted by the Australian Government in Sydney: the Global ‘Nature Positive’ Summit featured Indigenous leaders, scientists and conservationists, but political leaders in attendance provided little insight into when key reforms to the Environmental Protection and Biodiversity Conservation Act would take place, which experts, lawyers, and activists have been for. For this episode, Mongabay speaks with delegates to the summit including Barry Hunter, a descendent of the Djabugay people and...
info_outline
Jane Goodall and Rhett Butler celebrate Mongabay’s 25th anniversary
Mongabay Newscast
The Mongabay Newscast recently traveled to San Francisco to join an event hosted by the popular radio show and podcast, , reflecting on both Mongabay’s 25th anniversary and Jane Goodall’s 90th birthday, for a live audience of 1,700. First, Mongabay founder and CEO Rhett Ayers Butler discusses the news outlet’s biggest successes and impact over a quarter of a century, and then Climate One founder and host Greg Dalton engages Butler and Goodall in conversation about the state of environmental news, the biggest issues they’re working on, their inspirations, and what Goodall wants...
info_outline
Community conservation, Indigenous rights, and phasing out fossil fuels at Climate Week NYC
Mongabay Newscast
An array of top voices are interviewed or heard on this episode straight from Climate Week in New York, a global gathering of leaders and experts working in the climate and environmental sectors on proactive policies and practical initiatives. The podcast speaks with several individuals on topics ranging from a fossil fuel non-proliferation treaty that’s gaining steam currently to ways of improving the financing of Indigenous communities and conservation organizations working in Africa, and many others. Here’s who appears on the show: Allison Begalman, co-founder of the Hollywood Climate...
info_outline
High CO2 levels are greening the world’s drylands, is that good news?
Mongabay Newscast
Drylands are vast and home to a wide array of biodiversity, while also hosting a large portion of the world’s farmland, but they face continued desertification, despite many of them recently experiencing increased vegetation levels. Five million hectares (12 million acres) of drylands, an area half the size of South Korea, have been desertified due to climate change since 1980, but elevated CO2 levels are also driving a regreening of some areas, which some argue is a positive effect of pumping CO2 into the atmosphere. However, our guest on this episode says this isn’t necessarily good...
info_outline
“What If We Get It Right?” marine biologist & climate action author Ayana Elizabeth Johnson asks
Mongabay Newscast
Marine biologist and climate policy advocate Ayana Elizabeth Johnson joins this episode to discuss her latest book, , a compilation of essays and interviews with experts and authors in the climate and environmental fields. Her book sensitively probes the problems human society faces and potential pathways to address environmental injustice, from the unsustainable industrialization of our food systems to the inequity (or lack) of climate policy in many places. Co-host Mike DiGirolamo speaks with Johnson about key insights from her book’s array of interviews, plus lessons learned from fighting...
info_outline
Private profit from public lands: How a Cambodian elite with military ties claimed a community forest
Mongabay Newscast
The Phnom Chum Rok Sat community forest used to support local and Indigenous groups in Cambodia’s Stung Treng province, as well as a thriving local ecotourism venture, but that all changed this year when mining company Lin Vatey privately acquired roughly two-thirds of the land and began clearing the forest. Mongabay features writer Gerry Flynn how this happened with freelance reporter Nehru Pry, and speaks with co-host Mike DiGirolamo about how the 10 individuals behind the land grab, many of whom have connections to powerful Cambodian military officials and their families, managed this...
info_outline
The rights of nature, legal personhood & other new ways laws can protect the planet
Mongabay Newscast
“Legal personhood” and laws regarding the “rights of nature” are being trialed in nations worldwide, but whether they lead to measurable conservation outcomes is yet to be seen, says environmental economist Viktoria Kahui. Still, she says on this episode of the Mongabay Newscast that she’s very hopeful about them. There’s a global debate surrounding these laws’ efficacy as a tool for conservation, and growing uneasiness about how they may impose a Western viewpoint upon something as inherently complex and extralegal as nature. Some critics argue that such a concept not only...
info_outline
How coastal communities are adapting to rising seas naturally with Living Shorelines
Mongabay Newscast
Homeowners and towns along the U.S. East Coast are increasingly building “living shorelines” to adapt to sea level rise and boost wildlife habitat in a more economical and less carbon-intensive way than concrete seawalls. These projects protect shorelines using a clever mix of native plants, driftwood, holiday trees, and other organic materials. Peter Slovinsky, a coastal geologist with the Maine Geological Survey, joins the Mongabay Newscast to discuss the benefits of living shorelines, how they are implemented in his state, and what other techniques coastal communities should consider in...
info_outlineDrylands are vast and home to a wide array of biodiversity, while also hosting a large portion of the world’s farmland, but they face continued desertification, despite many of them recently experiencing increased vegetation levels.
Five million hectares (12 million acres) of drylands, an area half the size of South Korea, have been desertified due to climate change since 1980, but elevated CO2 levels are also driving a regreening of some areas, which some argue is a positive effect of pumping CO2 into the atmosphere.
However, our guest on this episode says this isn’t necessarily good news: remote-sensing researcher Arden Burrell describes how the CO2 fertilization effect is greening some dryland ecosystems, and why this worries scientists who say it may mask land overuse and decreased water resources.
Read the study here: https://www.nature.com/articles/s43247-024-01463-y
Like this podcast? Please share it with a friend and help spread the word about the Mongabay Newscast.
Subscribe to or follow the Mongabay Newscast wherever you listen to podcasts, from Apple to Spotify, and you can also listen to all episodes here on the Mongabay website, or download our free app for Apple and Android devices to gain instant access to our latest episodes and all of our previous ones.
Image Credit: Green areas saw a growth in foliage from 2000 to 2017, while brown areas represent a reduction. Image courtesy of Joshua Stevens/NASA Earth Observatory.
Time Codes
---
(00:00) Introduction
(02:50) Drylands and desertification
(04:19) Impacts of climate change on drylands
(09:33) The CO2 fertilization effect
(23:34) Digging into the models
(30:16) Implications for land overuse
(35:54) Post-show
(41:42) Credits