Among the biological feedback loops cited in a recent report are thawing permafrost, forest dieback, loss of soil carbon, and drying and smoldering peatlands. Photo: AFP
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".
A report released Feb 17 contains what researchers believe is the most comprehensive list of feedback loops ever compiled and a stark warning that climate models may be underestimating their impact.
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