>Nobody really ever said the world will end in 5 years.
You mean besides the most recognizable / well known climate activist on earth?
"A top climate scientist is warning that climate change will wipe out all of humanity unless we stop using fossil fuels over the next five years."
- Greta Thunberg (June 21st, 2018)
https://web.archive.org/web/20230307215203/https://twitter.c...
I believe the OP was talking about scientists, not social media influencers.
Also the statement was not “we will all be dead in 5 years.” It was “this could wipe out humanity if we don’t make huge changes in 5 years.” Time frame was not stated.
I think it’s hyperbole, and that the realistic take is “if we continue to make this problem worse the cost will compound until it becomes an existential risk to civilization.” That’s not extinction, but it’s very bad.
It’s a bit like running up credit card bills, except that we don’t even know the interest rate.