The American Southwest has always been a dry place — cue the romantic visions of hot, rugged, sun-bleached, seemingly infinite landscapes and star-filled night skies.

This holiday season brings surprising news about your Christmas tree.

When it comes to greenhouse gases, methane is one the biggest contributors.

Last month wrapped up a remarkably warm meteorological autumn across the U.S., with the season ranking as the sixth-warmest autumn on record for the nation, according to scientists from NOAA’s National Centers for Environmental Information (NCEI).

Solar and wind power may be free, renewable fuels, but they also depend on natural processes that humans cannot control. 

Fluctuating sunlight poses a challenge for plants and green algae, which must quickly adjust their photosynthetic systems to remain efficient in changing conditions.

Ocean acidification, mammal respiration, and aerosol formation all depend on chemistry that occurs at air-water interfaces.

Steel and cement are two materials that no society can do without.

Wildfires are some of the most destructive natural disasters in the country, threatening lives, destroying homes and infrastructure, and creating air pollution.

Record breaking marine heatwaves will cause devastating mass coral bleaching worldwide in the next few years, according to a University of Queensland coral reef scientist.