The dire effects of human-caused climate change are worsening and they threaten to bring more extreme heat waves, droughts, floods and wildfires unless urgent actions are taken, scientists warned in a major national report.
Efforts to adapt to climate change and curb the burning of fossil fuels have expanded since the last assessment was issued in 2018, the report says, but "without deeper cuts in global net greenhouse gas emissions and accelerated adaptation efforts, severe climate risks to the United States will continue to grow."
"This report says every 10th of a degree of warming matters. Every bit matters," said Katharine Hayhoe, chief scientist for the Nature Conservancy and one of the authors. "It clearly shows that per 10th of a degree of avoided warming, we save, we prevent risk, we prevent suffering. And that's pretty powerful."
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