New California rules would crush rooftop solar for renters

In this house, an EV helps power appliances — and the grid

Can electric vehicles finally start working as backup batteries for homes and the grid? This 120-home pilot project in California is working out the kinks.

Want a deal on a heat pump? Team up with your neighbors.

Bulk buying is a tried-and-true way to get discounts on rooftop solar. Now programs aimed at heat pumps are popping up too, helping people save thousands…

New US dietary guidelines would worsen carbon emissions and land use

Updated federal dietary guidelines finally take on ultra-processed junk food—but the push for more animal protein quietly erases every environmental gain, and then some.

How can we make buildings more resilient before – and after – earthquakes? We put one solution to the test

A full-scale earthquake test suggests a new generation of low-carbon timber-based buildings could remain usable after major shaking.

Europe’s energy crisis has a silver lining: It just made going green a lot cheaper

High fossil fuel prices have flipped the math on renewable energy. New research shows that accelerating Europe's green transition by a decade could now pay for itself—and then some.

For first time, Americans are getting more of their electricity from solar than coal