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A new art exhibit in Phoenix features some of the world's prickliest plants. It could also help save them.

Some countries, including the U.S., want to mine the seafloor for rare earth elements used in smartphones and electric cars. But other nations are concerned about the environmental impact.

The "ick factor" has kept consumers in the U.S. from eating crickets, locusts and mealworms. To convert skeptics, bug-food advocates are trying to win them over with sleek packages and clever names.

Sardines and other small, oily fish are some of the most nutritious in the sea. Now there's another reason to eat them: Fishermen use a lot less fuel to catch them than many other kinds of seafood.

When it comes to making livestock agriculture more sustainable, there's no one-size-fits-all approach. That's the conclusion of a study of livestock around the world.

The fact that a second contaminant in West Virginia's drinking water eluded detection for nearly two weeks — despite intense testing of the water — reveals an important truth about how companies test drinking water: In most cases, they only find the contaminants they're looking for.

A recent survey shows that furloughs and hiring freezes conspired to dampen morale. But if federal workers are feeling undervalued, their job security remains high.

Environmentalists are focusing on big corporations to prevent the destruction of rain forests cut down for paper products. With help from some unlikely characters, they've scored a success against one of the world's largest paper companies.

President Obama is touting a government report on climate change. He's taking steps to limit the greenhouse gases that contribute to a warming planet, but he faces political heat on Capitol Hill.

Under the proposal from the Environmental Protection Agency, new plants that run on coal would be permitted to emit only about half as much carbon dioxide as the average coal plant puts into the air today. Emissions from the electricity industry are already declining as utilities turn to natural gas and wind farms.