A new study by the U.S. Geological Survey says more data is needed to be able to say for sure if a link exists between unconventional oil and gas development and degraded water quality.
Anadarko Petroleum will pay the state for perchlorate pollution in Lake Mead water and soil
Officials say they’re welcoming swimmers back to the Overton Arm at Lake Mead after finding no dangerous toxins in the water.
A Native American reservation outside Las Vegas is trying to persuade the federal government that their community faces serious health risks from a nearby power plant by appealing to a nationwide campaign to increase visibility at national parks.
May marks the start of the ozone pollution season.