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 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