Tuesday, December 3, 2019

Last time the Earth experienced a comparable concentration of CO2 was 3-5 million years ago and back then...

... the temperature was 2-3°C warmer, sea level was 10-20 meters higher than now,  World Meteorological Organization Secretary-General Petteri Taalas stated in a news release.

Since 1990, there has been a 43% increase in total radiative forcing by long-lived greenhouse gases (LLGHGs) – the warming effect on the climate - by long-lived greenhouse gases. CO2 accounts for about 80% of this, according to figures from the US National Oceanic and Atmospheric Administration quoted in the WMO Bulletin
A steady rise of CO2 levels in the atmosphere has been observed and WMO  estimates that CO2 concentrations in the atmosphere were as high as 407.8 parts per million in 2018, indicating an increase from the 405.5 parts per million (ppm) in 2017. “There is no sign of a slowdown, let alone a decline, in greenhouse gases concentration in the atmosphere despite all the commitments under the Paris Agreement on Climate Change. We need to translate the commitments into action and increase the level of ambition for the sake of the future welfare of the mankind,” Mr. Taalas added