Millions of people visit the Grand Canyon each year. But this year will be different for one portion of the national park. A ...

Cloud seeding is a concept that was sowed in the 1940s. Vincent J. Schaefer, Bernard Vonnegut and Irving Langmuir were ...

Environmental regulators have launched an investigation into a heavily trafficked lake below the Cirque of the Towers in the Wind River Range, with an Enterococci reading 384 times the safety ...