Cottonwood Environmental Law Center v. United States Forest Service et al.

(2014) - Filed on behalf of Big Wild Adventures and Natural Exposures in support of an injunction to stop Forest Service projects from adversely affecting lynx critical habitat.

Town of Sturbridge Board of Health & Twenty-Eight 10-Citizen Groups v. Town of Southbridge Board of Health et al.

(2011) - Filed on behalf of Toxics Action Center in support of standing for environmental plaintiffs to appeal a town site assignment decision to the Massachusetts state court system.  Massachusetts Supreme Judicial Court.

In re Motion for Declaratory Ruling of Campaign for Ratepayers Rights et al.

(2010) - Filed of behalf of Toxics Action Center and a group of local residents regarding the air, water, and greenhouse gas pollution emanating from the Merrimack Generating Station.  New Hampshire Supreme Court.

In re Montpelier WWTP Discharge Permit

(2009) - Filed on behalf of former Vermont environmental officials in support of more stringent phosphorus controls at the Montpelier wastewater treatment facility.  Vermont Supreme Court.

State of North Carolina v. Tennessee Valley Authority

(2009) - Filed on behalf of environmental law professors in support of the right of downwind states to bring common law nuisance actions in federal courts.  U.S. Court of Appeals for the Fourth Circuit.

Entergy Corp. v. Riverkeeper, Inc.

(2008) - Filed on behalf of National Wildlife Federation and the Sierra Club in support of ecologically protective requirements for cooling water intake structures under the Clean Water Act.  United States Supreme Court.

Columbia Venture, LLC v. Dewberrry & Davis, LLC v. United States

(2008) - Filed on behalf of the Association of State Floodplain Managers in support of federal preemption over state tort claims regarding the National Flood Insurance Program and FEMA's flood map process.  U.S. Court of Appeals for the Fourth Circuit.

Natural Resources Defense Council, Inc. et al. v. Donald C. Winter, Secretary of the Navy et al.

(2007) - Filed on behalf of law professors in support of NRDC's NEPA claim regarding marine species and the United States Navy's use of mid-range sonar in Southern California. U.S. Court of Appeals for the Ninth Circuit.

John A. Rapanos et ux. et al. v. United States and June Carabell et al. v. United States Corps of Engineers et al.

(2006) - Filed on behalf of the Association of State Wetland Managers, the Association of State Floodplain Managers, and the New England Interstate Water Pollution Commission in support of adequate Clean Water Act jurisdiction over wetlands and tributaries.  United States Supreme Court.

S.D. Warren Company v. Maine Board of Environmental Protection

(2006) - Filed on behalf of National Wildlife Federation and 51 local, state, and national organizations with shared interests in protecting state authority to require Clean Water Act water quality certifications for hydropower dam licenses.  United States Supreme Court.

Commonwealth of Massachusetts et al. v. U.S. Environmental Protection Agency et al.

(2006) - Filed on behalf of a coalition of ocean and coastal conservation organizations in support of of EPA's authority to regulate greenhouse gas emissions from motor vehicles under the Clean Air Act. United States Supreme Court.

United States v. Johnson

(2006) - Filed on behalf of National Wildlife Federation and other groups upon the Court's reconsideration after Rapanos, in support of Justice Kennedy's test from Rapanos (supplemental to 2005 brief, below). U.S. Court of Appeals for the First Circuit.

United States v. Johnson

(2005) - Filed on behalf of National Wildlife Federation and other groups in support of Clean Water Act jurisdiction over the filling of wetlands impacting the Buzzards Bay watershed in Massachusetts. U.S. Court of Appeals for the First Circuit.

In re Stormwater NPDES Petition

(2005) - Filed on behalf of National Wildlife Federation and former Vermont officials in support of the state agency's duty to enforce stormwater requirements in impaired watersheds.  Vermont Supreme Court.

South Florida Water Management District v. Miccosukee Tribe of Indians

(2003) - Filed on behalf of the Association of State Wetland Managers and the Tropical Audubon Society in support of Clean Water Act jurisdiction over the pumping of phosphorus-laden water into the Everglades.  United States Supreme Court.