Bush's former Treasury Secretary lays out our choice. Take on the "climate bubble" now and unleash the power of innovation to spur the next industrial revolution. Or keep ignoring science and face an irreversible "carbon crash" more devastating than the recent economic crash.
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Berwick's announcement is the latest in a string of statements by candidates for the state's highest office in support of various environmental measures, signalling the race may have a strong focus on climate-related issues.