Tag Archives: permafrost

Emissions from Thawing Peatland Permafrost 30-50% Greater than Previous Estimates

Proceedings of the National Academy of Sciences, August 10 Under high emissions scenarios, northern hemisphere permafrost and peatlands will show a 30-50% greater contribution to warming than previously projected, with emissions impacts equivalent to 1% of all anthropogenic radiative forcing this century – and this takes into account both peatland carbon uptake and permafrost thaw […]

Global Methane Emissions Reach ‘Record High’ Levels

Global Methane Budget, 2000-2017 (2020), July 15, 2020. A new consensus update to global methane emissions reveals that atmospheric methane increased by 8.5ppb and 10.7ppb in 2018 and 2019, respectively – two of the highest annual values of the 21st century. The current concentration of atmospheric methane is more than 2.5 times higher than pre-industrial […]

Burning the High Arctic: 2020 Spring and Summer Fire Season in Sakha Republic. A Precursor of Fire Seasons to Come?

2020 has been an exceptionally hot year for the Arctic, especially in High Arctic Russia. Beginning in January, an extended and persistent heat wave has smashed records, peaking at 38°C (100.4°F) in June. Since then, the extreme heat has continued. For example, the Russian town of Verkhoyansk in Siberia has seen over 11 days of […]