Learn the definition of wind energy, how it works, the different types of wind energy, pros and cons, and more.

The history of solar energy was one of fits and starts, driven by individual inventors and scientists. Discover major solar ...

Different apples taste differently and are good for different uses. There’s even some unique history to the names of ...

From aeroponics to zero waste, Treehugger's comprehensive glossary of environmental words is your guide to sustainability lingo.

Mary Jo DiLonardo has worked in print, online, and broadcast journalism for 25 years and covers nature, health, science, and animals. Beagles are said to make poor guard dogs because of their ...

Laura Moss is a journalist with more than 15 years of experience writing about science, nature, culture, and the environment. If you're a vegetarian or vegan, you know the obvious foods to avoid ...

Although many lunar phenomena are one-night-only events, a ring around the moon is much less elusive. Also known as a lunar halo, a bright white ring of light around the moon can appear anytime ...

Lightning is the discharge of electricity caused by an imbalance between the positive and negative charges that build up in a thundercloud. Most lightning flashes occur between or within clouds ...

Ecotourism is about doing more when you're traveling than simply visiting natural attractions or ecologically diverse places. It’s about exploring a destination responsibly and sustainably with ...