"During the Democratic presidential primaries, James T. Kunz, who leads the operating engineers union in Western Pennsylvania, worried the party would choose a nominee determined to cripple the natural gas industry that has boosted the livelihoods of thousands of fellow Pennsylvanians."

"The emissions and methane leaks from new gas plants zero out the CO2 cuts achieved from closing coal plants, a peer-reviewed analysis found."

"For decades, families across a swath of southeast Los Angeles County have lived in an environmental disaster zone, their kids playing in yards polluted with brain-damaging lead while they wait on a state agency to remove contaminated soil from thousands of homes. Now, the cleanup faces even greater uncertainty."

"Federal officials are continuing to express concerns about the potential environmental impacts of a proposed titanium mine near the Okefenokee Swamp in Georgia while the company behind it has allegedly pushed back against the idea of a major government assessment of those impacts."

"Mario Molina, who shared a Nobel Prize in chemistry for demonstrating the threat to the ozone layer posed by CFCs, chemical compounds often found in refrigerants and hair sprays and whose use was later curtailed by a landmark international accord, died Oct. 7 at his home in Mexico City. He was 77."

"Ariel Kinzinger had a headache. Clark Brinkman coughed and wheezed. LaNesha Collins, feeling physically fine, was frustrated by another day mostly trapped inside looking out at a sepia sun, in Portland, Ore."

"A conservation group sued the federal government on Thursday over an action taken this year to no longer allow polluters to reduce their fines by paying for projects to help the environment."

"A federal court on Thursday struck down an Obama-era regulation targeting methane leaks from drilling on public lands, arguing that it went beyond the scope of the Bureau of Land Management (BLM), which promulgated the rule."