"IOWA CITY, Iowa -- Regent Bruce Rastetter intervened on behalf of ethanol industry leaders who were upset with a prominent University of Iowa researcher for warning that water-intensive ethanol production was threatening Iowa's water supply, records show."

"The pheasant, once king of Iowa’s nearly half-a-billion-dollar hunting industry, is vanishing from the state. Surveys show that the population in 2012 was the second lowest on record, 81 percent below the average over the past four decades."

"Across the U.S. Midwest, homeowners are restoring their yards and former farmland to the native prairie that existed in pre-settlement days. The benefits can be substantial -- maintenance that uses less water and no fertilizer, and an ecosystem that supports wildflowers and wildlife."

"NEVADA, Iowa -- Science and engineering company DuPont has started construction of a large cellulosic ethanol biorefinery in Iowa, with completion expected in mid-2014."

"Voters in the city of Wichita rejected fluoridated water on Tuesday, as they did in 1964 and 1978."

"Set aside the science lessons. The fight over fluoride is as much or more a clash of philosophy."

"TULSA, Okla. -- A massive dust storm swirling reddish-brown clouds over northern Oklahoma triggered a multi-vehicle accident along a major interstate Thursday, forcing police to shut down the heavily traveled roadway amid near blackout conditions."

"OMAHA, Neb. -- A Nebraska environmental group wants federal regulators to keep the Fort Calhoun nuclear plant shut down because it would be inundated by floodwaters in the unlikely event of a dam failing upstream."

"The Clean Nebraska group said Wednesday that the Nuclear Regulatory Commission's own assessment of the flood threat at the plant about 20 miles north of Omaha predicts all major equipment at Fort Calhoun would be flooded if the Oahe dam on the Missouri River failed.

"ST. LOUIS -- Illinois rejected an application for a permit for a strip coal mine that opponents claimed would have threatened a tiny village's water supply and various animals in a nearby wildlife area."