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Canada to announce all new cars must be zero emissions by 2035
(www.ctvnews.ca)
This is a most excellent place for technology news and articles.
What are some of the scary scenarios you have seen? I wouldn't mind reading up on some good sources that would be useful to keep an eye on.
Besides what we see in movies (unrealistic world ending scenarios), what I listed out seems to capture the realistic worst case scenarios that I have come across.
I haven't seen any projections that say that the atmosphere itself will become unbreathable (although we could see a lot more massive dust storms that would force people to remain inside or only go out with proper protection).