Light pollution negatively affects thousands of species: beetles, moths, wasps, and other insects. Here's how to minimize the harm from your bulbs.

"Kids are more susceptible to air pollution than adults, yet they're breathing in bus fumes twice a day, every school day."

A new coating could make regular toilets self-cleaning and cut the amount of water each flush uses.

Chemicals called siloxanes from everyday products are "supercharging" landfill gas. It's a problem now, but it could yield more green energy in the future.

A new way to combine sewage sludge and restaurant grease is the most efficient way to make methane yet, say researchers.

A new battery could lead to super fast charging for electric cars. It would take just 10 minutes for a range of 200 to 300 miles.

Carbon capture technologies could actually produce more carbon dioxide than they suck up. Focusing on renewables is a better solution, researchers say.

Moving from coal to natural gas could help save a lot of water, but moving to renewables would use just a fraction of the water we use today for power.

If you want to help fight climate change, "green buying" isn't the answer, say researchers. Instead, simply buy less.

Major American cities are leading the fight against climate change as the federal government steps back. Here, two experts explain what's working.