Where to go to find the latest information on the Colorado wildfires, as well as other fires burning in the West.
Record heat in the West and High Plains is aggravating tinderbox conditions, and is moving to the Midwest and Mid-Atlantic.
Three new sea level rise studies published during the past week spell trouble for portions of the East and West Coasts.
The ingredients of red slurry, a fire-retardant chemical, are toxic and may threaten fish and drinking water.
A satellite view of Death Valley, Calif., the hottest, driest, lowest point in North America.
More than 10,000 migrating birds in the U.S. have died from an outbreak of avian cholera caused by reduced water flowing through marshlands.
According to scientists, Death Valley's Ubehebe Crater may be ripe for another explosion.
An unusual wind storm slammed into the West, bringing gusts equal to the winds in a Category Four hurricane.