The secretary for homeland security and the president’s cybersecurity advisor echo the NSA and FBI’s concerns about encryption.
The prospects for carbon-neutral vehicles could get a boost from a new way to make hydrogen from biomass.
In a first-of-its-kind endeavor, electricity-starved Rwanda and the Democratic Republic of Congo are trying to get power from a lake—and avert catastrophe.
A new study suggests that battery-powered vehicles are close to being cost-effective for most people.
A prototype hybrid quadcopter can fly several times farther than conventional battery-powered ones.
Cultural and technological trends are driving record investments in security startups.
An innovative startup that blends solar energy and battery storage reflects broader interest combining the technologies.
Researchers have demonstrated a long-lasting device for making hydrogen from sunlight and water—but funding is running out.
The Indian government hopes to increase the country’s solar capacity 30-fold by 2020.