Green - An environmentalist community

This seems like an even less effective strategy than glueing yourself on the highway or throwing soup on museum pictures. Why would such an announcement by world leaders be anything but a lip service similar to all the previous "bla bla bla"?

I think effective Eco Activism would try to target key fossil fuel infrastructure like disrupting access roads to refineries or blocking pipelines (but obviously not by spilling their content into nature).

That would likely also get the attention of politicians very fast.

I feel like we are past the point where it makes sense to do publicity stunts to raise awareness of the general public. People know by now, and they either don't care or feel helpless to change anything. Directly disrupting their daily lives by trying to shut down airports etc. is not going to change that, it is just going to make them angry and turn the anger towards the activists.