Climate change could severely impact Yellowstone National Park and the Greater Yellowstone Ecosystem by 2050, with serious wildfires occurring yearly and forests becoming wide-open prairies, according to a scientific study released Monday.

It's always best to reserve rooms at Yellowstone National Park as early as you can, but that's not always possible. Here are some tips for staying in the Yellowstone area during an impromptu July or August visit.

From the National Park Service: Steven Iobst was named Deputy Superintendent of Yellowstone National Park by Superintendent Dan Wenk, effective July 31.

Yellowstone cutthroat trout from the Le Hardy Rapids area are serving as stock for Wyoming Game and Fish to repopulate streams in the Greater Yellowstone Ecosystem.

It's been one of the wettest springs and summers in recent years, but now the waters are finally receding in Yellowstone National Park, where normalcy can resume -- to a certain degree.

A bus system linking Yellowstone National Park and Grand Teton National Park with three gateway cities could be up and running before the end of the month, as mass transit hits the region.

Whitebark pines -- a crucial cog in the Greater Yellowstone Ecosystem -- may be ailing and in danger, but the U.S. Fish and Wildlife Service will not extend protections to the species, saying resources are best deployed elsewhere.

Senator John Barrasso, a Republican from Wyoming, is urging Yellowstone National Park officials to allow more snowmobiles in the Park during winter months and do away with requirements that snowmobilers be accompanied by a guide.

A proposed overhaul of the North Entrance to Yellowstone National Park would add more entry kiosks and a road reconfiguration allowing folks in a hurry to bypass the Roosevelt Arch -- while decreasing traffic for those who want to enjoy it.

A bad economy, higher-than-normal fuel prices and a delayed spring pushed down visitation numbers in June for Yellowstone National Park, but it still ended up as the third-highest June visitation on record.