"The situation at Mitsubishi Motors just went from bad to much, much worse. The Japanese automaker admitted Tuesday that it had falsified fuel efficiency tests for the past quarter century, the latest revelation in a scandal that has rocked the company."

"Coal-fired power plants have propelled much of China’s economic rise for decades, helping make the nation the world’s biggest emitter of greenhouse gases. Even with economic growth slackening, and other energy sources taking hold, new coal plants have been added. Now Beijing is trying to slow things down."

"A group of Senate Democrats introduced a bill Wendesday to invest in water infrastructure and remove lead from pipes around the country. The bill would pump $7 billion a year into water infrastructure repair work and lead programs through loans, grants and tax credits for states."

"The Senate narrowly defeated a controversial amendment Thursday that would have stripped funding for clean water protections and ensured defeat of a $37.5 billion energy and water spending bill."

"Volkswagen AG and U.S. officials have reached a framework deal under which the automaker would offer to buy back almost 500,000 diesel cars that used sophisticated software to evade U.S. emission rules, two people briefed on the matter said on Wednesday."

"Three officials responsible for maintaining safe water in Flint tinkered with evidence, tweaked testing and misled county and federal officials, helping to set in motion the contamination of the city's drinking water with lead, according to criminal charges filed by Michigan's chief law enforcement official Wednesday."

"More than half of the US population lives amid potentially dangerous air pollution, with national efforts to improve air quality at risk of being reversed, a new report has warned."

"The Environmental Protection Agency has released a major upward revision to its estimates of total emissions of methane, a hard-hitting if short-lived greenhouse gas, in an annual inventory that the agency submits to the United Nations. The revisions will further up the stakes in a political battle over regulations that the agency is preparing to issue that could affect operations at thousands of oil and gas wells."

"Michigan would have the toughest lead-testing rules in the nation and require the replacement of all underground lead service pipes in the state under a sweeping plan that Gov. Rick Snyder and a team of water experts unveiled Friday in the wake of Flint's water crisis."

"New Hampshire says emissions of a chemical used to make Teflon coatings may be the source behind the contamination of more than 40 wells in several towns."