How GM Invented Planned Obsolescence It all started with a struggling auto company in the 20s.

Find out what nitrogen oxides (NOx) are, why they are a serious environmental concern, and what role they play in the Volkswagen diesel engine scandal.

Learn where to recycle milk cartons and how to do it correctly, whether the carton should be flattened or not, and what to do with the plastic caps.

There are 145 National Forests in 41 states in the United States. Discover each of them, state-by-state.

Cactus leather can be used for handbags, shoes, furniture, and more. We look at its environmental impact and how it compares to cotton and leather.

Why is rice vegan, and when is it not? Our expert guide helps you always choose vegan rice products and dishes.

Friends and enemies in the animal world tend to be pretty clear-cut. But as these unlikely pairs show, even Mother Nature doesn't set things in stone.

Learn what community-based tourism consists of and what countries are already participating in successful projects.

These 20 drought-tolerant California native plants will help the state's residents create beautiful gardens, preserve water, and foster local wildlife ...

From fruit peels and coffee grounds to pantyhose and pill bottles, here's how to save money and treat your trash like treasure.

Yes, this is all about cute-overload. But if you're a regular cyclist and have a dog as your very best friend, the question will eventually hit you: How can you take your pooch along for the ride?

Most Americans live in urban areas, forming huge hot spots of energy consumption. But while rural residents use less energy overall, cities are often slicker ab ...