Furthermore your claim on "clouds will never form" is plainly wrong, and more likely than not, the opposite of what actually happens in a 8° hotter earth.
Climate change is happening, no real doubt about that, but the mindless apocalyptic claims that are parroted around need to stop, because not only are they wrong, but they also decrease the credibility of actual legitimate claims.
There also have been several points in time where the earth was experiencing mass extinctions and survived those just fine.
https://www.ipcc.ch/site/assets/uploads/2018/02/WGIIAR5-Chap...
> For most economic sectors, the impact of climate change will be small relative to the impacts of other drivers (medium evidence, high agreement). Changes in population, age, income, technology, relative prices, lifestyle, regulation, governance, and many other aspects of socioeconomic development will have an impact on the supply and demand of economic goods and services that is large relative to the impact of climate change.