We have known this is coming for decades, we have known it will be devastating to the sustainability of human civilization as it exists.
You are promising devastation to human civilization, but all we have is a hot summer. Even got an end to the drought in California!
If you want to fight climate change, you have to be real about it. Doomsday hyperbole backfires and gives ammunition to people who don't acknowledge that the climate has been warming.