But none of their emissions cuts can be met anyway.
Climate News Network reports:
Governments that agreed to try to restrict global warming to a rise of no more than 2°C may have set themselves the wrong target, according to Swiss scientists.
Marco Steinacher from the University of Bern and colleagues report in Nature that the cuts in carbon dioxide emissions necessary to achieve this limit to rising temperatures won’t stop sea level rise, won’t halt the acidification of the oceans and won’t repair the losses in agricultural productivity.
The key paragraph in the study is below [Click to enlarge]. Target 1 is global temp. Target 2 is ocean acidification. Note the emissions cuts needed. Eff is allowable 21st century CO2 emissions. We currently emit about 35 gigatons of CO2-equivalents annually.