Gasoline Gallon Equivalents (GGE) are used to determine the amount of energy produced by alternative fuels compared to that of one gallon of gasoline.

What should you do when a wasp or hornet lands on you? Learn more about why wasps attack and how to avoid getting stung.

15 Smokey Bear posters were created in the mid-1980s for a major state and federal fire prevention campaign. Explore the collection and their message.

Here are maps showing locations of broad types of forest cover by tree types according to frequency of occurrence in the native range.

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

Cupro is a byproduct of cotton and a vegan alternative to silk. Does that mean it's a sustainable fabric? Find out exactly how this material is made.

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.

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 ...

Cellulose tape is a transparent adhesive tape that happens to be biodegradable too. It is difficult to find, especially in the US. Almost all transparent tape sold here is made of acetate. One ...

The natural history and progression of forests and trees started when vascular plants arrived on Earth over 400 million years ago.

Hempcrete provides an increasingly popular, low-carbon option for home building. Discover its unique benefits over traditional building materials.

Explore Mammoth Cave National Park with our list of 10 mind-blowing facts, including its unique karst topography, springs, caves, and rich history.