"The Confederated Tribes of the Umatilla Indian Reservation are leading the drive to push Oregon to adopt the nation’s strictest rules against toxic pollution of the state’s waters."

"A former top Pennsylvania official warned Maryland lawmakers to go slow in allowing drilling for natural gas in Marcellus shale deposits underlying the state's western mountains or risk the environmental and social problems his state is now experiencing from a poorly regulated wave of energy exploration."

"The EPA has proposed examining every aspect of hydraulic fracturing, from water withdrawals to waste disposal, according to a draft plan the agency released Tuesday."

"Southern California's Imperial Valley produces about 80 percent of the nation's winter vegetables. But years of drought, and a population boom in the Southwest, now threaten the water supply in the desert region — and all those cheap winter greens."

"Virginia is about to limit state regulators' ability to protect public health and the environment from toxic discharges entering state waters from surface coal mines."

"The Great Lakes region, the world's largest freshwater system, could face local water shortages in the Chicago and Milwaukee areas due to increased demand and environmental changes, the U.S. Geological Survey said on Monday."

"Two southwestern Pennsylvania fly ash disposal sites are among 28 such sites in 17 states that have contaminated groundwater by leaking toxic, cancer-causing hexavalent chromium, according to a new report by Earthjustice and two other environmental groups."