Most of the $90 million price tag for the crossing — about 60% — comes from private donations.

The move shows the president is trying to bring down prices, but he also appears to be going back on his word to curb oil and gas production.

A Department of Energy study out today shows that the U.S. has the potential to power 40% of its electricity needs with solar power.

British and American researchers have developed a “super-enzyme” to reduce the cost and improve the efficiency of recycling of plastic waste.

The pop-up “store” is filled with handcrafted items made from single-use plastic bags.

It’s often cheaper to burn off the natural gas than it is to sell it.

Now they want their institutions to lend some support.

Major hotel brands are promising to get rid of one of the most recognizable elements of the hotel experience: tiny bottles of shampoo.

Pennsylvania’s natural gas industry hopes the plant can bring a lifeline to a sector beleaguered by overproduction.

In Seattle, grants have been offered to dry cleaning companies who will trade a potentially dangerous chemical for safer alternatives.