Paris global warming targets could be exceeded sooner than expected because of melting permafrost, study finds. Planet on brink of 'tipping point' as thawing soil and sediment releases large volumes of carbon dioxide and methane into atmospheretopicstoday (51)in #science • 6 years ago https://www.independent.co.uk/environment/climate-change-paris-agreement-permafrost-melting-carbon-emissions-a8541686.html