A River in Flux—Amazon River may be altered forever by climate change

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https://www.science.org/content/article/amazon-river-may-altered-forever-climate-change

By DANIEL GROSSMAN, Science. 

Excerpt: Extreme flooding and droughts may be the new norm for the Amazon, challenging its people and ecosystems. MANAUS, BRAZIL ...In the previous 4 months, only a few millimeters of rain have fallen in this city of 2 million at the confluence of the Negro and Amazon rivers. Normally it gets close to a half a meter during the same period. ...Making matters worse, the drought coincided with a series of weekslong heat waves. In September and October, withering conditions persisted across the Amazon, and temperatures here peaked at 39°C, 6°C above normal. ...Schöngart and other researchers expect such changes to intensify as global climate warms. The current drought provided a grim preview, killing river dolphins and fish, and threatening livelihoods for communities along the river....

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