'Feedback loops' worsening climate crisis: report

WASHINGTON: Global warming melts sea ice, which leads to further warming because water absorbs more heat than ice, creating what scientists call a"climate feedback loop."

They urged UN experts with the Intergovernmental Panel on Climate Change to produce a special report on the effects of feedback loops and their potential"severe consequences." In the permafrost example, rising temperatures lead to thawing, producing carbon dioxide and methane emissions which lead to further increasing temperatures.The report warned that interacting feedback loops may result in a sequence of catastrophic climate"tipping points," where changes to climate systems become self-sustaining.

The report noted that most nations have signed on to the Paris Accord, which calls for limiting global warming to 2.0 degrees Celsius, and ideally 1.5 degrees Celsius, but they said more drastic action is needed to reduce emissions.

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