'The study (Science 16 10 20) shows only a few degrees of warming in the Arctic is enough "to abruptly activate large-scale permafrost thawing," suggesting a "sensitive trigger" for greenhouse gas emissions from thawing permafrost.'
Looking at carbon isotopes & other biomarkers, a new study finds that "Arctic warming by only a few degrees may suffice to abruptly activate large-scale permafrost thawing," aka a feedback loop causing more #GlobalWarming. 😳😬 We must decarbonize NOW.
The past is the key to the future. "This demonstrates that Arctic warming by only a few degrees may suffice to abruptly activate large-scale permafrost thawing, indicating a sensitive trigger for a threshold-like permafrost climate change feedback."
Another warning from the past