"Wastewater is arguably worse for the environment than oil, killing vegetation and leaving farmland sterile for generations. Some say the state isn't doing enough to get its spill problem controlled."

"A pipeline that ruptured recently in North Dakota and spilled nearly 3 million gallons of saltwater produced during oil drilling wasn't inspected by the state before being installed, according to state regulators."

"The U.S. Forest Service adopted a rule on Wednesday that requires managers of the nation’s nearly 200 forests and grasslands to formally designate where snowmobiles can be operated on the 193 million acres of public land the agency oversees."

"Yellowstone National Park has shipped at least 200 bison near the park boundary with Montana to slaughter as the famed tourist destination seeks to reduce a herd by 900 animals this winter, a U.S. conservation group said on Friday."

Near Bradshaw, Nebraska, the four Harrington sisters fight the Keystone XL pipeline, which they fear could threaten land their family has farmed for 150 years. Their unpainted, solar-powered barn, plastered with slogans, sits smack in the path of the pipeline.

"Specialty crop farmers were at the [Iowa] capitol today complaining of damage to their produce from pesticide drift."

"The Canadian company that wants to build the Keystone XL pipeline took legal action Tuesday to secure remaining right of way from a group of holdout Nebraska landowners."

"Iowa’s largest water utility may soon file a lawsuit challenging the state’s voluntary approach to dealing with farm fertilizer run-off."

"How dangerous is the radioactive West Lake Landfill?"