Atlantic/East
Connecticut, New Jersey, New York, Pennsylvania, Virginia, Washington D.C., West Virginia

New England Fishery Industry: Fishing for Answers
Atlantic, Eastern United States

Rumble at Guntown! Science, Politics, and Open Space (January, 2000)
Naugatuck, CT

Midwest
Illinois, Indiana, Iowa, Kansas, Minnesota, Missouri, Nebraska, Ohio, Wisconsin

Reformulated Gasoline and the Fight Against Ozone
Location: Southeastern Wisconsin

Genetic Pollution: Horizontal gene transmission in agriculture(February, 2001)
Midwest United States

Analysis of Roundtree Branch (January, 2000)
Platteville, WI

Prairie Dunes Country Club: A Golf Course for Birdies (January, 2000)
Hutchison, KS

The Prairie Wetlands of Southwest Minnesota (January, 2000)
Murray County, MN

PCB Contamination in the Fox River (January, 2000)
Green Bay, WI

Phytoremediation/Wetlands Treatment at the Iowa Army Ammunition Plant (January, 2000)
Middletown, IA

North
Manitoba, Michigan, North Dakota, Ontario, Saskatchewan, South Dakota

Food Web Control of Primary Production in Lakes (January, 2000)
Upper Peninsula of Michigan

Northeast
Maine, Massachusetts, New Brunswick, Newfoundland, Nova Scotia, Quebec

Regulating Car Idling to Control Air Pollution (December, 2003)

Northwest
Alaska, Alberta, British Columbia, Oregon, Washington, Yukon

Invasive Marine Species (January, 2000)
Washington

Matsutake Mushroom Mania (January, 2000)
Northern California and Oregon

Pacific
Hawaii

South
Alabama, Arkansas, Florida, Georgia, Kentucky, Louisiana, Mississippi, North Carolina, South Carolina, Tennessee

A Suburban Creek Resists Channelization (October, 2000)
Decatur, Georgia, DeKalb County

Drinking Water from Wells, Not the River (January, 2000)
Memphis and Shelby County, TN

Everglades Restoration, Cypress Tree Planting (October, 2001)
Florida, Palm Beach County, Boynton Beach, Arthur R. Marshall Loxahatchee National Wildlife Refuge

Southeastern

Invasive Plants (April, 2001)
Southeast United States

Harvesting Kudzu: A Controversial Business (December, 2003)

Southwest
Arizona, Mexico, New Mexico, Oklahoma, Texas

Alien Invaders: When Weeds Do Good Things (February, 2001)
Southwest United States, Gulf Coast

A Case for Habitat Disturbance in Conservation (February, 2001)
North-Central Texas, Wichita County

Endocrine Disrupters on the Gulf Coast (January, 2000)
Gulf Coast

Oil Rigs as Artificial Reefs (January, 2000)
Gulf Coast, Texas

West
California, Colorado, Montana, Nevada, Utah, Wyoming

Protecting Groundwater Resources (January, 2000)
Ventura County, Moorpark, CA