Capturing and using carbon emissions to make chemicals and plastics could help fight climate change, but there are a few caveats.

Just one in three of the world's longest rivers is still free-flowing, new research shows.

Sunshine on school roofs across the US is an undertapped resource that could help the environment and cut electricity, benefits valued at $4 billion.

A new method can make organic solar cells more robust and weather-resistant.

Putting solar panels on your roof is probably a good investment, no matter where you live. But adding a home battery may do more harm than good.

"What we have found is that sometimes when you design for recyclability, you give up on durability, and when durability is the goal, recyclability is sacrificed."

New materials for hydrogen fuel cells may help cram a lot more hydrogen in a smaller space.

Check out this podcast episode to hear about how rural communities in Nepal generate green power.

Controlling light from exotic crystal semiconductors could pave the way for better solar panels, displays, and more.

Scientists have discovered a possible new source for rare earth elements, which are essential for renewable energy tech, smart vehicles, and your phone.