Despite slight gains in population, the Amur leopard is still on the brink of extinction. Katherine Gallagher is a writer and sustainability expert. She holds a B.A. in English Literature from Chapman ...

A solar oven is an easy, environmentally friendly way to cook food solely using the sun's power. It works by reflecting sunlight onto an enclosed surface. You can use a solar oven to heat water and ...

Wolves and humans have a complicated relationship. We often vilify the “Big Bad Wolf” in fiction and real life, but we're also consistently fascinated by these smart, social mammals, and we haven't ...

A passive solar-heated home needs no solar panels to heat or cool it. Rather, the energy used to heat and cool a house comes directly from the sun through skylights and windows. Some of that energy is ...

Steve Nix is a member of the Society of American Foresters and a former forest resources analyst for the state of Alabama.

Cactus leather is a bio-based material lauded for its breathability, an area in which other vegan leathers fall short. This unique material is used for handbags, shoes, apparel, and furniture. Even ...

CBT provides communities with the opportunity to play a lead role in their own tourism industries. Katherine Gallagher is a writer and sustainability expert. She holds a B.A. in English Literature ...

Alex Davies is a technology journalist and the author of "Driven," an upcoming book about the self-driving car industry.

Russell McLendon is a science writer with expertise in the natural environment, humans, and wildlife. He holds degrees in journalism and environmental anthropology. More than half the U.S. population ...

Jim Gunshinan is a writer and editor who has published articles about green homebuilding and renovation, energy, the environment, and climate change. Hempcrete is an energy-efficient, low-impact, ...

Blythe Copeland is a writer, editor, and blogger who began working with Treehugger in 2008.

Squid and octopuses are both brainy, soft-bodied sea dwellers with many arms, shade-shifting skin, and a tendency to spew ink into the paths of their predators. They're remarkably similar—closely ...