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We will move to a low-carbon world because nature will force us, or because policy will guide us. If we wait until nature forces us, the cost will be astronomical.

"Will fossil fuels melt the global economy?" by Karl Mathiesen, www.theguardian.com. March 6, 2014.
We will move to a low-carbon world because nature will force us, or because policy will guide us. If we wait until nature forces us, the cost will be astronomical.