A Pennsylvania appellate court reversed and remanded a lower court's decision that the owner of an oil and gas company should be liable for failing to plug 47 abandoned oil and gas wells located in Erie and Crawford Counties. The state environmental agency issued an administrative order requiring th...

A district court issued a preliminary injunction enjoining California from enforcing Proposition 65’s carcinogenicity warning requirement for glyphosate. On the evidence before the court, the required warning for glyphosate does not appear to be factually accurate and uncontroversial because it co...

The U.S. Supreme Court, in an unsigned judgment and decree, ordered Wyoming to pay Montana $20,340 in damages, plus $67,270.87 in costs, for reducing the amount of water available in the Tongue River in violation of the Yellowstone River Compact. The Compact protects pre-1950 appropriative rights to...

The New Jersey Superior Court upheld an oil company's $225 million Spill Act settlement in connection with contamination at two oil refineries in Bayonne and Linden, New Jersey. The natural resources damages were estimated at $8.9 billion. In a settlement agreement, the New Jersey Department of Envi...

A Pennsylvania court affirmed a lower court decision dismissing residents' and an environmental group's lawsuit challenging the construction of a natural gas pipeline through a suburban township. The plaintiffs argued that a local zoning ordinance prohibits the construction of hazardous gas and liqu...

The Ninth Circuit affirmed a lower court decision that the Hawaii Pesticides Law impliedly preempts a county ordinance that seeks to regulate pesticides and genetically engineered plants. The ordinance would have required commercial farmers to maintain “buffer zones” between crops to which pesti...

The Pennsylvania Supreme Court struck down as unconstitutional portions of a 2012 law governing oil and gas operations in the Marcellus Shale. This is the second time the law, known as Act 13, has been reviewed by the court: in 2013, the court struck down provisions that limited the zoning powers of...

The Supreme Court of California held that the state's moratorium on the use of suction dredges to mine gold from rivers was not preempted by federal mining law. The case arose after an individual challenged his conviction for the possession and unpermitted use of a suction dredge. He argued that the...

The Fifth Circuit reversed a lower court decision that the U.S. Army Corps of Engineers must bear all the costs of deauthorizing the Mississippi River-Gulf Outlet (MR-GO), instead holding that the Corps' cost-sharing formula with the state of Louisiana was reasonable. The Corps has completed buildin...

The Supreme Court of California held that the state may enter and conduct environmental and geological studies and testing on more than 150 privately owned properties in the Sacramento-San Joaquin Delta that the state might seek to acquire for construction of two new tunnels to deliver fresh water f...