"America’s climate change pollution comes from many sources: cars and trucks, power plants, farming operations, home-heating systems and even trees that burn in wildfires. But in the power sector, 85% of emissions come from just 100 companies and public agencies."

"A former regional administrator will temporarily lead EPA's high-profile Office of Air and Radiation, following the exit of air chief Bill Wehrum."

"Hundreds of thousands of children in the US remain at risk of exposure to lead, which causes cognitive and behavioral deficits".

"For the clearest sign yet that renewable energy has gone mainstream, consider this: Clean-energy resources supplied more of America’s electricity than coal for the first time ever in April."

"Canada has signaled a willingness to buck one of President Trump’s most significant environmental rollbacks — a major weakening of auto pollution standards — by signing a clean-car deal with California, the state leading the fight against the rollback."

"At a debate held in a sinking city, only four candidates were directly asked about the climate crisis."

"Bill Wehrum, a top Environmental Protection Agency official who helped reverse Obama-era rules aimed at cutting emissions of greenhouse gases and other air pollutants, is stepping down amid scrutiny over possible violations of federal ethics rules."

"The Trump administration has enlisted the help of two private fireworks firms to put on an extended pyrotechnics display as part of the president’s overhaul of the nation’s Independence Day celebration on the Mall."

"The EPA is reversing a 24-year-old air policy that would allow power plants, refineries and other industrial sources to avoid stringent controls for toxic air pollution, it announced June 25."

"America’s coal-burning power plants are shutting down at a rapid pace, forcing electric utilities to face the next big climate question: Embrace natural gas, or shift aggressively to renewable energy?"