Not exact matches
However, since their methodology suppresses most of the
high frequency variability, one needs to be cautious when making comparisons between their reconstruction and
relatively rapid events like the
global warming of the last century.
Results show
relatively increased
warming in the
global average over the 21st century owing to reconstruction of temperatures in
high northern latitudes, supporting the findings of Cowtan & Way (2014) and Karl et al. (2015).
Because of its long life span and
high global warming potential (GWP), even a
relatively small amount of SF6 can impact the climate.
CH4 is
relatively short - lived in the atmosphere (atmospheric lifetime on the order of a decade) relative to CO2 (atmospheric lifetime on the order of centuries) and therefore has a
higher global warming potential over the shorter 20 - year time horizon (86 versus 34; Myhre et al. 2013).
Stabilizing CO2 equivalent concentrations at 450 ppm would only result in a 50 % likelihood of limiting
global warming to 2 °C, and that it would be necessary to achieve stabilisation below 400 ppm to give a
relatively high certainty of not exceeding 2 °C.
On top of that there's the methane and the volatile organic compounds that are unavoidably released from
relatively uncontrolled combustion of solid biomass fuels — small quantities but
high global warming indexes.