A Pennsylvania appellate court held that a family may go forward with its lawsuit against a natural gas company for operating wells on adjacent property to extract natural gas from beneath the family's property via hydraulic fracturing. The family asserted claims for trespass and conversion and soug...

A district court ordered EPA to promulgate revised CAA emission standards for nine industrial sectors by October 1, 2021. Environmental groups wanted the overdue rulemakings to be completed within two years, while the Agency requested seven years. The court determined that three and a half years was...

A district court denied motions to dismiss environmental groups' lawsuit challenging Executive Order 13795, “Implementing an America-First Offshore Energy Strategy,” which reversed President Obama’s withdrawal of 128 million acres in the Arctic and Atlantic Oceans from future oil and gas leasi...

The D.C. Circuit upheld EPA's 2012 regional haze rule, which seeks to restore air quality and visibility in certain national parks and wilderness areas to what they would be under natural conditions. The rule requires states to impose best available retrofit technology (BART) on certain stationary p...