Shell's new application for its wastewater treatment plan in Monaca has sparked concerns over increased emissions and past environmental violations.

State regulators have allowed the Beaver County ethylene plant to keep exceeding limits on damaging nitrogen oxides while the official permitting process has taken seven times its original timeline.

Towering flares at the Shell Deer Park chemical plant triggered by third-party steam reliability issues could last for several days, according to the company. In an emergency alert update Tuesday, the ...

(AP) Two Royal Dutch Shell PLC ships operating in the Arctic emitted excessive amounts of air pollution during drilling operations last summer off Alaska’s northern coastline, according to the ...