Since 1985, millions of people have removed a supertanker's weight of plastic trash from beaches as part of the annual International Coastal Cleanup Day.
American Prairie Reserve, a public-private partnership, is bringing back buffalo, birds and big, open sky to the Montana prairie.
Seoul, Sydney and Jerusalem are among cities that took a cue from New York and repurposed their old highways and railways into parks and trails.
Environmental DNA testing is transforming the field of biology, by making it much easier to detect different species in rivers and streams.
California, the most populous state in the U.S., has pulled out from a historic drought thanks to help from Israel's water technology.
Rodrigue Katembo has saved critically endangered wildlife in the DRC's Virunga National Park, including mountain gorillas, elephants and hippos.
A decision to manufacture its toilets in the U.S. and a reputation for being environmentally friendly are key to Japanese company TOTO's success.
Managing waste so that it doesn’t end up in our oceans is a worldwide challenge. Get tips from researcher Jenna Jambeck on how to reduce plastic pollution.
Mark your calendars: On April 26, NASA is broadcasting the first live ultra-high-definition video from the International Space Station.