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Non Sign II, an installation in Blaine, Washington, aims to make passing motorists focus on "the world that's behind all this artificial world.""

The Food and Drug Administration is wiping the raw-milk mustache from America's face

The best starchy staples, chosen by experts in the field

Haro Strait is home to a pod of more than 80 orcas, known as the Southern Residents, which were declared an endangered population in 2005.

"Very little conservation is aimed at creepy- crawlies."

Learning how to survive steep stuff in the Sawtooths

How big solar plants can save the planet without killing this desert tortoise

Grímsvötn volcano erupts over Iceland

Beef is the big bugaboo when it comes to climate-altering foodstuffs--but that's only because we eat so much of it

Local politicians in Florida use the bible to argue against manatee protections

The first person to have reached the South Pole, the North Pole, and Mt. Everest's summit within the span of one year

In deep Antarctica, a surprising snow kestrel appears

Aleut students from Kodiak and Old Harbor go to 'science boot camp'

With each new plateau, the canvas changes color

U.S. coal-fired power plants pump more than 48 tons of mercury into the air each year

In the mountains of Idaho, a group of injured war vets seek relief from wounds—some obvious, some invisible.

The most committed colleges regard sustainability as a social movement

Student activists are kicking ash and taking names

Going green may finally be "normal," but some schools with eco-agendas remain miles from mainstream

Architecture students head to Bluff, Utah, to build Earth-friendly homes for Navajo in need