Some sixty renowned researchers have just updated the main climate indicators. The aim is to inform the negotiations that will take place at COP29 in Baku (Azerbaijan) at the end of the year, without waiting for the next IPCC report to be published in 2029. And the results are not good! According to the scientists’ calculations, global warming is increasing at an unprecedented rate of over 0.2°C per decade. It averaged +1.07°C between 2010 and 2019, and now stands at +1.14°C over the decade 2013-2022 (+1.26 in 2022). CO2 concentration in the atmosphere is now estimated at 417 ppm, compared with 410 ppm in 2021, according to the latest IPCC report. Whatever happens, the 1.5°C limit set by the Paris Agreement is likely to be exceeded in the early 2030s.
Source : Earth System Science Data