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Study: Protected lands in the Amazon prevent disease, save billions

by Segun Ogunlade April 7, 2023
written by Segun Ogunlade April 7, 2023
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New study published on Thursday shows protected Indigenous reservations in the Amazon rainforest save around US$2 billion annually in healthcare costs for treating respiratory and cardiovascular diseases by absorbing thousands of tonnes of airborne pollution each year.

The health impacts of forest fires in the Brazilian Amazon, which release huge amounts of particles into the atmosphere that can travel hundreds of kilometres, damaging the air quality in distant cities, were analysed in the decade-long study.

Published in the journal Communications, Earth & Environment, the study found that by protecting their own lands against such fires – often set by land-grabbers, cattle ranchers and others encroaching on the forest – and instead saving pollution-absorbing trees, Amazon Indigenous peoples help prevent thousands of cases of potentially deadly diseases.

“Worldwide, forests are known for absorbing pollutants from fires through pores on the surface of the leaves, but this is the first time we have estimated the capacity of tropical forests to do this,” said lead author Paula Prist of US-based research group EcoHealth Alliance.

Read also: Greenhouse gas emissions rose at ‘alarming’ rate last year, US data shows

“Our results indicate that the Amazon rainforest can absorb as much as 26,000 metric tonnes of the particles every year, and Indigenous territories are responsible for 27 per cent of this absorption,” she said in a statement.

The study found Indigenous forests prevent 15 million cases of disease each year, saving the health care system at least US$2 billion – a conservative estimate, researchers said.

Whilst numerous studies have found protected Indigenous lands play a key role in protecting forests, whose pollution-absorbing capacity makes them vital to the race to curb climate change, indigenous leaders said the new study adds yet another argument to the case for protecting native lands.

They therefore urged Brazilian President Luiz Inacio Lula da Silva to follow through on his promise to resume creating new Indigenous reservations, a process that was suspended under his far-right predecessor, Jair Bolsonaro (2019-2022).

Story was adapted from CNA.

 

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