Propeller-driven aircraft in flight (NASA)

What has 14 propellers and zero emissions?

NASA's latest experimental plane, sporting 14 propellers and long, skinny wings, is all-electric and produces zero emissions.
Bill Gates (© AP Images)

Global fund stakes $1 billion on clean energy

Bill Gates and 20 of the world's top entrepreneurs have a plan for investing in great ideas. They aim to revolutionize the clean energy sector.
Man walking among rooftop solar panels (© AP Images)

Solar power bolstered by $1 billion World Bank loan

The World Bank has signed an agreement with the International Solar Alliance to boost solar energy in developing countries.
Woman touching digital map (Shutterstock)

City transit systems look to the future

Several U.S. cities are leveraging technology to reduce traffic's effect on climate change. Look at the winner of the "Smart City Challenge."
Air conditioners being sold on street (© AP Images)

Did your country help make air conditioners better for the environment?

Nearly 200 countries took a key step in the fight against global warming by phasing out a chemical used in air conditioners and refrigerators.
Wave generator overlooking ocean (© AP Images)

Are ocean waves America’s energy future?

The U.S. Navy's wave generator taps the energy potential of the ocean and could help supply remote areas with much-needed electricity.

5 takeaways from the latest climate data [video]

Despite day-to-day weather fluctuations, the effects of climate change are becoming more clear. Learn why you should be concerned and what you can do.

The climate is changing. It’s time to adapt.

A warmer world will raise sea levels and trigger extreme weather events. You can prepare for these events, and the U.S. will help other countries do that.
President Obama with virtual reality goggles (White House / Pete Souza)

Experience Yosemite in virtual reality with President Obama

President Obama is the first sitting U.S. president to project himself into virtual reality with a 360-degree representation of Yosemite National Park.