3 ms·It is already urgent.by stevage 1y agoIt is already urgent.lukan 1y agoIt was urgent 40 years ago.stevage 1y agoNo. Addressing CO2 production was urgent then but the actual impacts of heat were not. They are now.lukan 1y agoBut the warming started already back then. Contrails contributed. So less contrails, less warming in the last 40 years.