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Unprecedented Amazon Drought Tied to Climate Change, Scientists Warn

Published January 25, 2024
1 years ago

A comprehensive study by World Weather Attribution has confirmed that human-induced climate change is the chief culprit behind the last year's historic drought in the Amazon Rainforest. This international network of scientists has found that the severe depletion of water levels, which disrupted river ecosystems and impacted millions, was a direct result of global warming, exacerbating beyond natural phenomena like El Nino.


This intensive research monitored climatic events from June through November, unearthing that anthropogenic global warming, primarily from the burning of fossil fuels, made such a drought 30 times more likely. The extreme temperatures recorded led to the lowest water levels seen on record in the Amazon, demonstrating the tangible footprint of climate change on arguably the planet's most vital ecosystem.


Notably, this study highlights the twofold attack on the rainforest – reduced precipitation, coupled with increased evaporation due to higher temperatures that further aggravate drought conditions. Though El Nino had a role in rainfall reduction, the escalated global temperatures were foundational in leading the drought, the study concluded.


The Amazon drought's ramifications have been nothing short of catastrophic. Residents, particularly in severely hit regions like Manaus, grappled with the dual crises of reduced water supply and months of choking on wildfire smoke. The region's dependence on these waterways was starkly illuminated as people traversed long distances for necessities, often physically dragging boats across parched riverbeds.


Biologically, the toll is equally grim. The plunging water levels have led to the demise of at least 178 Amazon river dolphins last year and a monumental fish die-off - both signals of an ailing ecosystem gasping for relief. These developments are particularly alarming when considering the critical role the Amazon plays in global climate regulation through CO2 absorption.


The distressing findings from this report have global implications as they come on the heels of Earth experiencing its hottest year on record. As the Amazon is nudged closer to a catastrophic tipping point – precipitated by a combination of drought, deforestation, and fires – the urgency for climate action is underscored. The risks of fatal heatwaves, rising sea levels, and severe natural disasters loom larger as the planet inches toward the critical threshold of a 1.5 degrees Celsius increase since pre-industrial times – a limit once deemed a guardrail for the most calamitous impacts of climate change.


If human global warming trend is unchecked, researchers emphasize that the Amazon may increasingly confront such grave scenarios. A poignant closing comes from study co-author Friederike Otto, asserting that what once was a one-in-50-year event could become the norm in an intensively warming world – a clarion call for immediate global countermeasures against a warming climate.



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