Michigan AG launched investigation to determine criminal and civil liability for violations of state law that caused or contributed to the Flint Water Crisis.

Washington sued Monsanto for damages to the state’s natural resources and cleanup costs associated with pollution from PCBs.

Multi-state settlement of consumer-protection claims against car manufacturers that overstated their vehicles’ fuel efficiency.

New Jersey AG represented New Jersey Department of Environmental Protection in action against developer, holding company for developer, and company’s owner seeking to enforce prior directives to effect repairs and maintenance as required by the Safe Dam Act.

California AG, working with the federal EPA, entered into two related settlements over Volkswagen’s use of defeat devices to evade emissions testing.

Settlement of consumer protection claims raised by a multi-state coalition of state attorneys general against Volkswagen for selling vehicles equipped with “defeat device” software intended to circumvent emissions standards and concealing this software from regulators and the public.

Multi-state consent degree settling civil claims between gulf states and BP for civil penalties and damages to natural resources.

Investigation into whether ExxonMobil’s activities in the climate science sphere constitutes a violation of New York’s Martin Act, which prohibits publicly traded companies from misleading investors.

Tennessee AG filed suit against Chevron alleging that the company illegally used taxpayer funds to pay for spill clean up costs.

Michigan AG pursued enforcement action against Enbridge Energy in response to their actions which caused over 1 million gallons of heavy crude oil to spill into the Kalamazoo River.

Michigan AG brought enforcement action against waste management companies to reduce foul odor emanating from the United States’ largest waste incineration facility.

California AG brought a lawsuit against three plastic water bottle companies for misleading claims of biodegradability. This was the first “greenwashing” suit of its kind.

Federal common law nuisance claim against five major electric power companies for their contribution to climate change through greenhouse gas emissions.

Multi-state litigation under Clean Air Act alleging violations of New Source Review permitting process to reduce sulfur dioxide emissions in coal-fired power plants.

Washington State intervened and multiple states submitted Amicus Briefs in lawsuit filed by Native American tribe against Canadian smelting company for polluting the Columbia River and Lake Roosevelt.