"Stabilization work [was] set to begin Saturday at the Gold King Mine in southwest Colorado as part of continued cleanup efforts at the site after last summer’s massive wastewater spill."

"U.S. seed and agrochemicals companies Monsanto Co and DuPont said on Thursday they have signed a multi-year supply agreement for the weed killer dicamba in the United States and Canada."

"Expect fireworks in the House as lawmakers move on a number of contentious items in the final legislative days before a scheduled seven-week long recess."

"The Obama administration on Thursday finalized rules that will require companies to have strict safety and environmental protection plans in place before they drill for oil or natural gas in the Arctic Ocean."

"Outside Susan Holmes' house in southeastern Oklahoma, visitors are welcomed by an entryway lined with oxygen bottles and a machine that collects and concentrates oxygen from the air."

"A high-profile clash over the trademarking of Yosemite National Park names appears headed for a mediated settlement."

"DuPont Co. was found liable for a man’s testicular cancer in the second lawsuit to go to trial in 3,500 lawsuits over a toxic Teflon chemical found in Ohio and West Virginia waters, for which spinoff Chemours Co. had agreed to bear the cost."

"The U.S. Senate on Thursday approved legislation that would for the first time require food to carry labels listing genetically-modified ingredients (GMOs)."

"GRAND TETON NATIONAL PARK, Wyo. -- In 1891, a search party found the body of Robert Hamilton floating in the Snake River and lit a fire atop Signal Mountain to alert others in Jackson Hole. Today, the mountaintop is sending out new signals -- cellphone service -- across the sage- and pine-covered valley."

"The U.S. electric power grid is one of the biggest, most costly machines on Earth."