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)
President Joe Biden announced Wednesday that federal disaster assistance is available for Louisiana, which is working to slow a mass inflow of salt water creeping up the Mississippi River and threatening drinking water supplies in the southern part of the state.
