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https://www.theguardian.com/environment/2024/jan/24/devastating-drought-in-amazon-result-of-climate-crisis-study-shows>
"The climate crisis turned the drought that struck the Amazon rainforest in
2023 into a devastating event, a study has found.
The drought was the worst recorded in many places and hit the maximum
“exceptional” level on the scientific scale. Without planet-warming emissions
from the burning of oil, gas and coal, the drought would have been far less
extreme, the analysis found.
It also showed the drought was made 30 times more likely to happen by global
heating. The return of the natural El Niño climate phenomenon is associated
with drier conditions but played only a small role, the scientists said.
The climate crisis is supercharging extreme weather across the planet, but the
extreme Amazon drought is a stark and worrying example because the rainforest
is already thought to be close to a tipping point into a drier state. This
would result in a mass die-off of trees in the world’s most important store of
carbon on land, releasing large amounts of CO2 and driving global temperatures
even higher.
Millions of people in the Amazon have been affected by the drought, with some
rivers at their lowest levels for more than a century. There have been drinking
water shortages, failed crops and power cuts, as hydroelectric plants dried up.
The drought also worsened wildfires and high water temperatures were linked to
a mass mortality of river life, including the deaths of more than 150
endangered pink river dolphins in a single week.
“The Amazon could make or break our fight against climate change,” said Regina
Rodrigues, a professor at the Federal University of Santa Catarina, Brazil, and
part of the World Weather Attribution team that did the analysis.
“If we protect the forest, it will continue to act as the world’s largest
land-based carbon sink,” she said. “But if we allow human-induced emissions and
deforestation to push it through the tipping point, it will release large
amounts of CO2. We need to protect the rainforest and move away from fossil
fuels as quickly as possible.”"
Cheers,
*** Xanni ***
--
mailto:xanni@xanadu.net Andrew Pam
http://xanadu.com.au/ Chief Scientist, Xanadu
https://glasswings.com.au/ Partner, Glass Wings
https://sericyb.com.au/ Manager, Serious Cybernetics
