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This article originally appeared on the author's personal blog, and was written in that capacity. Italics are the author's.
The only sure path to stop climate change is to zero out greenhouse gas emissions as soon as possible. That’s it. As simple as this sounds, it’s going to be an
But I find that most people don’t understand the time dimensions of the problem very well.
A useful way to think about the effort and timescales required is to consider the "Carbon Law," which was coined by my friend Johan Rockström. Despite the name, this isn’t a physical "law" of the universe but rather a set of recommendations.