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Deforestation and climate change are projected to increase heat stress risk in the Brazilian Amazon

Earth Sciences

Deforestation and climate change are projected to increase heat stress risk in the Brazilian Amazon

B. F. A. D. Oliveira, M. J. Bottino, et al.

Explore how the Amazon Basin's savannization impacts heat stress indices under climate change scenarios brought to light by researchers Beatriz Fátima Alves de Oliveira, Marcus J. Bottino, Paulo Nobre, and Carlos A. Nobre. Discover alarming predictions that over 11 million people might face extreme heat risks by 2100 due to these combined effects.

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Playback language: English
Abstract
This study uses a coupled ocean-atmosphere model to assess the impact of Amazon Basin savannization on the wet-bulb globe temperature (WBGT) heat stress index under two climate change scenarios (RCP4.5 and RCP8.5). It finds that deforestation's effect on heat stress is comparable to RCP8.5 climate change. By 2100, combined effects could exceed human adaptation limits, with over 11 million people exposed to extreme heat stress risk under a high-emission scenario (RCP8.5). Northern Brazil and socially vulnerable populations face the highest risk.
Publisher
Communications Earth & Environment
Published On
Oct 01, 2021
Authors
Beatriz Fátima Alves de Oliveira, Marcus J. Bottino, Paulo Nobre, Carlos A. Nobre
Tags
Amazon Basin
savannization
heat stress
climate change
RCP4.5
RCP8.5
deforestation

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