"A federal judge yesterday [Wednesday] blocked a key federal approval process that allowed Keystone XL and other pipelines to cross waterways, just as developers are beginning construction on the controversial oil project."

"EPA Administrator Andrew Wheeler today proposed leaving national soot standards unchanged at least through the middle of the next decade as he questioned the reliability of scientific research suggesting that tighter limits are needed to save lives."

"Companies unable to get outside contractors to verify the accuracy of air emissions monitoring data because of the pandemic would be able to delay some tests under an EPA rule now under review."

"Climate change means more floods, which overwhelm urban sewers and send raw sewage into rivers and streams. Philadelphia is aiming to capture rainwater before it flows into city drains."

"The Environmental Protection Agency (EPA) on Friday announced that the cleanup of hazardous waste sites and other pollution spills may be slowed or paused during the coronavirus outbreak."

"The long-standing practice of spreading treated sewage sludge and septage on farm fields has contaminated groundwater in some areas with PFAS, recent sampling shows."

"Two communities — one in Canada, one in the U.S. — share both a border along the St. Marys River and a toxic legacy that has contributed to high rates of cancer. Now the towns are banding together to fight a ferrochrome plant."

"The EPA overcorrected when it scrapped an entire Obama-era climate regulation in response to a court order focused on just part of the rule, the D.C. Circuit said."

"Coronavirus patients in areas that had high levels of air pollution before the pandemic are more likely to die from the infection than patients in cleaner parts of the country, according to a new nationwide study that offers the first clear link between long-term exposure to pollution and Covid-19 death rates."

"A week after EPA issued a controversial enforcement policy, the agency declined to reveal how many companies sought waivers of noncompliance due to the novel coronavirus pandemic."