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

Wind energy is electricity from the naturally flowing air in the Earth's atmosphere. As a renewable resource that won't get depleted through use, its impact on the environment and climate crisis ...

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 ...

David Kuchta, Ph.D. has 10 years of experience in gardening and has read widely in environmental history and the energy transition. An environmental activist since the 1970s, he is also a ...

I've been trying to eat healthier lately and I have to be honest: When it comes to apples, I just buy whatever's on sale. But the truth is, different apples taste differently and are good for ...

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 ...

The fall harvest brings in the bright sweetness of apples and the warm richness of pumpkins and squash. It’s also the season of persimmons, a somewhat less common fall fruit. Typically in season ...

It's a Treehugger's dream come true. Leafsnap is a free app that identifies plant species of all kinds, from flowers and bark to fruit and trees. Go for a walk, take a shot of a leaf, and this ...