Sidney Stevens is a writer and editor for magazines, websites, and books, with a focus on health and environmental issues. Some 400 billion birds share the planet with us, each with its own abundant ...

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 ...

ULEV is an acronym for Ultra Low Emission Vehicle. ULEVs release emissions that are 50 percent cleaner than the current average year's models. ULEVs take the LEV, Low Emission Vehicle, standard a step ...

A solar tree is a structure resembling a tree that generates solar energy using photovoltaic (PV) panels. It employs principles of biomimicry, using a natural system—in this case the form of a tree—to ...

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 ...

Organic cotton is cotton that is grown without the use of synthetic fertilizers and pesticides. While polyester has dominated the fiber for nearly 20 years, organic cotton continues on an upward trend ...

Josh Lew is a writer and copywriter who focuses on travel, green living, and personal finance. For some places, the experiential travel trend could be a game-changer. Smaller destinations cannot hope ...

Katherine Gallagher is a writer and sustainability expert. She holds a B.A. in English Literature from Chapman University and a Sustainable Tourism certificate from the GSTC. Native to Southern ...

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

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 ...

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 ...

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