You've likely heard about a NASA study which supposedly proved that certain houseplants can help purify your home's air.

Around the world, plastics are finding their way into farm fields. Some farmers say agricultural plastic, already a necessity for many crops, is becoming even more necessary as climate change fuels ...

The U.N. has identified Kabwe, a city of almost 300,000 people in Zambia, as one of the most polluted places on the planet.