"More than 100 people were treated for respiratory problems after a chemical spill at an MGP Ingredients Inc facility on Friday generated a chemical cloud over the northeastern Kansas city of Atchison before authorities declared the threat over."
"More than 80 people protesting a controversial North Dakota oil pipeline project were arrested Saturday and pepper spray was used in what the sheriff's department called a 'riot.'"
"A sprawling network of flood barricades erected in Iowa's second-largest city of Cedar Rapids largely succeeded in holding back water from the rain-swollen Cedar River, city officials said on Tuesday."
"Evacuations and curfews have been enacted in parts of Iowa and Wisconsin as flood threats from swollen rivers and creeks continue to cause panic."
"How an esoteric piece of farm equipment created America’s breadbasket—and threatens to destroy it."
"MINOT, N.D. — Donna Bye's tour of the city she loves takes you by her old home, the red one on the left that, in 2011, flooded with 5 feet of Souris River water and backed-up sewage."
"Enbridge Energy Partners announced Thursday it will delay its controversial proposed Sandpiper oil pipeline through northern Minnesota."
"An earthquake struck northern Oklahoma early Saturday morning, rattling houses and waking residents in the region around Pawnee, about 74 miles north of Oklahoma City. Preliminary measurements show the quake had a magnitude of 5.6 — believed to be one of the strongest in state history."
"The Iowa Utilities Board has approved a wind turbine operation it says will be the nation's largest wind energy project."
"ST. LOUIS -- Water samples from 16 schools in the city school system contained lead levels that exceeded those most commonly found in homes in Flint, Mich., after a contamination crisis there, according to results released Thursday by an environmental engineering company."
Advertisement 
