Pollution
Nicotine in the air and clothing permeates skin and enters the bloodstream at levels equivalent to inhalation of secondhand smoke.
Citizen scientists confirm that plastic pollution is blemishing previously pristine beaches in the Arctic Ocean.
Short-lived chemicals not covered by international treaty may travel fast enough to harm Earth's protective ozone layer.
Mass migration to Chinese cities has likely decreased the total number of premature deaths caused by air pollution.
Hundreds of U.S. streams may have significant levels of endocrine-disrupting chemicals from treated wastewater.
Aerosol pollution may have suppressed global warming and increased Arctic sea ice from 1950-1975.
Study estimates that without new "congestion pricing" policy, kids would have suffered 45 percent more asthma attacks.
Access to a dark night sky is a universal human right, says the American Astronomical Society
How pollution deposes dominant tree species and releases soil carbon.
Artificial lung reveals surprising dangers from pellet burners and diesel-fueled ships.
Scientists find first evidence that oil from the spill reached land-based animals.
Scientists are developing greener and cheaper ways to pave our way to a solar energy future.