Cooperative Institute for Research in Environmental Sciences at the University of Colorado Boulder


Singing unmasked, indoors spreads COVID-19 through aerosols, new study confirms
September 18, 2020

Singing indoors, unmasked can swiftly spread COVID-19 via microscopic airborne particles known as aerosols, confirms a new peer-reviewed study of a March choir rehearsal which became one of the nation’s first superspreading events.

Mercury Concentrations in Yukon River Fish Could Surpass EPA Criterion by 2050
September 16, 2020

The concentration of mercury in fish in Alaska’s Yukon River may exceed EPA mercury criterion by 2050 if greenhouse gas emissions t

In the Line of Fire
September 10, 2020

People are starting almost all the wildfires that threaten U.S. homes, according to an innovative new analysis combining housing and wildfire data. Through activities like debris burning, equipment use and arson, humans were responsible for igniting 97 percent of home-threatening wildfires, a CU Boulder-led team reported this week in the journal Fire