As waters rise, coastal megacities like Mumbai face catastrophe

Mumbai and other fast-growing coastal megacities in Asia are particularly vulnerable to climate-related flooding. Twenty-one of the world’s 31 megacities hug a coastline, 13 of which are in Asia. These cities of 10 million or more often drive their national economies and are home to both rich and poor.

California moves towards 100% carbon-free electricity after landmark vote

By 2045, California could get 100% of its electricity from zero-carbon sources. On Wednesday, the state senate voted to pass SB100, a bill that speeds up the current goals for renewable energy–the state will now aim to hit 50% renewable electricity by 2026, and 60% by 2030–and then targets 100% carbon-free production in 27 years.