NPR

Why deforestation means less rain in tropical forests

A new study finds deforestation reduces rainfall in tropical rainforests, which has grave consequences for agriculture, drought and climate resilience.
View of a deforested and burned area of the Amazon rainforest in northern Brazil on Sept. 2, 2022.

A new study has uncovered that forest loss is changing weather patterns in the world's three largest remaining tropical rainforests.

The study, published in the journal Nature last month, found that clearing wide swaths of trees — what's known as deforestation — reduces rainfall in tropical rainforests which actually generate their own rain. When it rains, trees soak up and use that water. They then release that moisture, both through evaporation and through their leaves. That humid air rises and helps create clouds, which in turn create more rain.

This process, called precipitation recycling, accounts for up to 41% of the rainfall in the Amazon

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