A Natural Resources Defense Council report says atrazine is severely contaminating drinking water in Illinois, Iowa, Indiana, Missouri, and Nebraska.
The Justice Department submitted a consent decree covering the 2004 spills of anhydrous ammonia in Nebraska and Kansas that killed an estimated 21,000 fish.
New research sharpens Shapiro equation of sweat production, adjusting the amount of water needed in the field for hydration.
State agencies must develop emission reduction strategies and benchmarks to ensure 2020 targets are met.
BBC World/Harris Polls surveyed 2,123 adults online about air and water pollution and water shortages.
Governor Schwarzenegger says the research paints a bleak water future unless the state takes serious action, including upgrading its infrastructure.