Climate change has a very ...

Climate change has a very high procrastination penalty that just grows with each passing year of inaction - rather like what happens if you don't pay off your credit card. But for climate, there is no such thing as a fresh start from bankruptcy.
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 William H. Calvin

Quotes from the same author

Since Serengeti-scale savanna scenes are only one or two million years old, our earliest after-the-apes ancestors didn't move into this scene so much as they evolved with it, as the slower climate changes and uplift produced more grass and less forest.
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 William H. Calvin
The real focus needs to be on political action to stop this runaway train, real soon.
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 William H. Calvin