The Brazilian Amazon released nearly 20% more carbon dioxide into the atmosphere over the past decade than it absorbed, according to a startling report that shows humanity can no longer depend on the world’s largest tropical forest to help absorb manmade carbon pollution.
From 2010 through 2019, Brazil’s Amazon basin gave off 16.6bn tonnes of CO2, while drawing down only 13.9bn tonnes, researchers reported Thursday in the journal Nature Climate Change.
The study looked at the volume of CO2 absorbed and stored as the forest grows, against the amounts released back into the atmosphere as it has been burned down or destroyed.
“We half-expected it, but it is the first time that we have figures showing that the Brazilian Amazon has flipped, and is now a net emitter,” said co-author Jean-Pierre Wigneron, a scientist at France’s National Institute for Agronomic Research (INRA). [Continue reading…]