>>12076811people act as if 1 extra celsius per year is nothing, but if you work with crops that shit literally kills your plant and/or messes up timings.
Some countries in europe start having the righ climate to grow tropical food, while the local crops are getting harder and harder to keep.
Sea rising also causes problems with the climate in general.
People understimate too much what small numbers can do.
Will it kill humanity? no.
Will it cause massive economic damage? yes.
There's just no reason not to switch to green technology, fossil fuels are running out either way, so it's not like we get a choice. Plus pollution, if unchecked, can cause severe health problems in the long term.