"DENVER -- Four cities along [Colorado's] Front Range will decide Tuesday whether to halt new oil and gas development when voters cast their ballots on a series of local initiatives."

"An elemental phosphorus plant owned by the FMC Corp., on the Shoshone-Bannock homelands in Idaho, has been abandoned for more than a decade. But its legacy of pollution remains -- and it’s jeopardizing economic progress, public and environmental health on the reservation and in surrounding communities."

"Disaster teams in flood-ravaged foothills of Colorado narrowed their search on Friday for 82 people still unaccounted for a week and a half after torrential rains began, and officials said some of the missing would most likely be added to the death toll."

"Wildlife managers in Montana are trying to pinpoint whether a disease, environmental toxin or chemical agent has caused a die-off of more than 100 whitetail deer in wetlands along a river corridor in the western part of the state."

"Property losses from flooding in Colorado will total nearly $2 billion, about half from housing and half in the commercial and government sectors, catastrophe modeling firm Eqecat said on Wednesday in the first comprehensive estimate of the disaster's economic toll."

"Colorado's richest oil field -- the Denver-Julesburg Basin -- is buried in floodwaters, raising operational and environmental concerns, as state and industry officials work to get a handle on the problem."

"Search-and-rescue teams bolstered by National Guard troops fanned out across Colorado's flood-stricken landscape on Monday, as a week of torrential rains blamed for eight deaths and the destruction of at least 1,600 homes finally gave way to sunny skies."

"Record-shattering rainstorms across Colorado's Front Range led to flooding that blew out at least six dams Thursday, stranding a Larimer County family on the second floor of their home and breaching a federal stormwater holding pond northeast of Denver."

"Encounters between bears and humans are likely to increase in Yellowstone National Park this fall as a scarce supply of nuts forces hungry grizzlies to seek food closer to the U.S. park's popular tourist areas, officials warned on Wednesday."