They’ve been talking about climate change at the United Nations again this week —talking and talking and talking. It’s the latest chapter of a conversation that has been going on for more than 20 years. And still the CO2 emissions are rising, and still the politicians are dragging their feet, and still the prospect of meaningful action seems frustratingly distant.
Meanwhile, leaders of the world’s cities are increasingly aware that they don’t have any more time to wait. Big-picture measures to reduce emissions and mitigate climate change may not be within the control of the world’s mayors. But they can prepare their cities for what is to come.