Current carbon pledges
dimanche 1 novembre 2015 à 01:00The UN says that current carbon pledges will probably keep global heating to under 3C.
That is still taking too big a risk. Even the 2C target is somewhat arbitrary, since we don't know it will avoid disaster (or positive-feedback tipping points that would push warming further).
In addition, without an enforcement mechanism, we can't be confident all the countries will carry out their unilateral pledges.