Global warming is known to the State of California to be bad for us. But how bad can it be? Evidence has accumulated that global warming–rather than asteroid impacts–was responsible for some of the planet’s prehistoric mass extinctions. The hypothesized mechanism involves an enormous outgassing of hydrogen sulphide from the oceans. Details here.
At the risk of self-advertising:… You claim “AI is unusual in degree, not in kind” and “It is not clear…



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