"Analysts have long argued that nations aiming to use wind and solar power to curb emissions from fossil fuel burning would first have to invest heavily in new technologies to store electricity produced by these intermittent sources—after all, the sun isn’t always shining and the wind isn’t always blowing. But a study out today suggests that the United States could, at least in theory, use new high-voltage power lines to move renewable power across the nation, and essentially eliminate the need to add new storage capacity."

"Canadian Prime Minister Justin Trudeau pledged on Tuesday to require that environmental reviews of oil pipelines and LNG export projects consider greenhouse gas effects, and said it was not his role to be a cheerleader for such projects."

"A massive interstate natural gas pipeline proposed to run through two national forests suffered a setback Thursday, as the proposed route was rejected following concerns about endangered wildlife."

"A federal appeals court upheld the government’s new coal dust exposure rule for coal miners Monday, rejecting industry challenges to it."

"The Supreme Court on Monday ruled that federal regulators may encourage electricity users like schools, hospitals and shopping centers to reduce consumption at peak times in exchange for price breaks. The regulatory approach, known as “demand response,” lowers costs for consumers and lessens the risk of system failures that can cause blackouts."

"SEATTLE — A proposed pipeline-expansion project in Canada will put the fishing rights and cultural heritage of U.S. tribes at risk, a lawyer representing several Washington state tribes told Canadian energy regulators."

"Federal officials must re-examine a 117 million-ton expansion of a Montana coal mine after a judge sided with environmentalists who sued over the project’s potential to make climate change worse and cause other environmental damage."

"More than 400 facilities holding huge storehouses of natural gas get little regulatory oversight as their infrastructure ages."

"Regional air quality regulators in California voted on Saturday to require the utility responsible for a ruptured underground pipeline in the Los Angeles area to underwrite an independent study on the health effects of a huge methane leak from the site."

"Plummeting coal prices have pushed almost half the debt issued by U.S. coal companies into default, and for miners and their investors there’s no end in sight."