Amazon rainforest reaching tipping point, researchers say

| BBC | Science | Climate Change | 19 hours ago |

| By Helen Briggs Environment correspondent |


"The trees are losing health and could be approaching a tipping point - basically, a mass loss of trees," said Dr Chris Boulton of the University of Exeter.
Getty Images

The Amazon contains between 90 and 140 billion metric tons of carbon


The Amazon rainforest is moving towards a "tipping point" where trees may die off en masse, say researchers.


A study suggests the world's largest rainforest is losing its ability to bounce back from damage caused by droughts, fires and deforestation.


Large swathes could become sparsely forested savannah, which is much less efficient than tropical forest at sucking carbon dioxide from the air.


The giant forest traps carbon that would otherwise add to global warming.


But previous studies have shown that parts of the Amazon are now emitting more carbon dioxide than can be absorbed.

 
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