Climate change is the most urgent challenge facing humankind. Other issues make headlines: terrorism kills; inequality affects everyday life for billions around the globe. But climate is paramount, because in sustainability human survival itself is at stake. Why then have the nations governing the planet been so hopelessly ineffective in addressing the grave environmental crisis? Is it because the consequences of carbon emissions seem hypothetical, or too far off? Politicians pay few costs for doing
How to fix climate change: put cities, not countries, in charge
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