Mark Kaufman, science reporter at Mashable, discusses California's history-making decision to mandate solar panels on all new homes and low-rise apartment buildings. [We talk what this means for the solar panel companies and the rest of the U.S.](https://mashable.com/2018/05/09/california-becomes-first-state-to-mandate-solar-panels-on-new-homes)
Maui residents who made desperate escapes from oncoming flames, some on foot, asked why Hawaii’s famous emergency warning system didn’t alert them as fires raced toward their homes.
Water infrastructure across the country is vulnerable as climate change makes storms more unpredictable and destructive, flooding low-lying drinking water treatment plants and overwhelming coastal sewage systems.