As corals die off worldwide, scientists are devising technologies to save—or regrow—them.
SunEdison’s collapse and mounting losses elsewhere are causing solar developers to change course.
GE sees its new turbine as a strong rival to batteries for storing power from the grid.
The rapid growth of wind and solar power in the states is wreaking havoc with energy prices.
By acquiring Sharp, the iPhone manufacturer has bolstered its ambitious renewable energy plans, which include big solar deals in China and India.
EV batteries have to get a lot cheaper by 2017 if the Model 3 is to live up to its billing.
Lightbridge has developed a metallic fuel for nuclear reactors that it claims will tackle some of the industry’s biggest challenges, but safety questions remain.
Barack Obama has made nuclear security a centerpiece of his administration, but experts say the risk of nuclear terrorism is ratcheting up.
There are alternatives to the wastewater injection that causes earthquakes and contaminates groundwater.
The more-affordable Tesla Model 3, to be unveiled Thursday, is projected to sell in huge numbers. But will there be enough places to charge them?