The highest-resolution radar images of asteroid 2015 TB145's safe flyby of Earth have been processed and yield new information about its surface features.
A toxic algae outbreak that snaked more than 600 miles down the Ohio River past four states is forcing water utilities to reassess the threat from harmful algal blooms that are popping up increasingly around the nation.
Fifteen US states have petitioned a federal court to block new rules by President Barack Obama's administration to encourage clean power and cut harmful carbon emissions from power plants.
A new study provides guidance to health officials and drinking water providers on how to decontaminate plumbing systems.
The campaign to stop President Barack Obama's sweeping emissions limits on power plants began taking shape Wednesday, as 16 states asked the government to put the rules on hold while a Senate panel moved to block them.
Three new studies suggest that when communities are hit with disasters that contaminate drinking water the official decision-making and response often lack scientific basis.
The U.S. Fish and Wildlife Service is proposing to list species of Appalachian crayfish as endangered, with potential consequences for the struggling eastern Kentucky mining industry.
Public health adversely affected when federal officials overlooked inhalation risk during West Virginia chemical spill
West Virginians suffered adverse health effects inside their homes after following plumbing-system flushing directions in response to a chemical spill last January, and these recommendations failed to consider the dangers ...
Will the eastern hemlock—a tree that has been around for 10,000 years, often lives 300 years, and can live as long as 800 years—be wiped out by an invasive cousin of the aphid known as the hemlock woolly adelgid?
The National Park Service has banned drones from flying over the Appalachian Trail.