Some seem to believe that a EU emission decrease will have a huge effect on world emissions, as is shown in this curious tweet from a Belgian politician (my emphasis):
Without getting the EU climate neutral, you will not get the world below 2 degrees C. And if we do not achieve that, the costs and losses cannot be foreseen.
This is a bold statement and it doesn’t make much sense. Firstly, the EU emissions were in the order of 10-11% of world emissions in 2018 and secondly, developing countries like China and India have strongly rising emissions without engagements to lower them, so their emissions are very likely to further increase in the future, likely even after 2030. Africa will likely follow soon.
He rightfully got criticized for that in the reactions on the tweet. In this post, I want to go a step further and try to find out how EU emissions relate to global emissions and to what extent these are big enough to compensate for the increase from the developing regions.