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More than half of the lakes around the world are losing water. The Cooperative Institute for Research in Environmental Sciences at CU Boulder reconstructed lake levels from the past 30 years, determining that climate change, human consumption and sedimentation are the reasons for the decline.

Researchers have figured out a way to predict bacteria鈥檚 environmental pH preferences from a quick look at their genomes, using machine learning. Led by experts at CU Boulder, the new approach promises to help guide ecological restoration efforts, agriculture and even the development of health-related probiotics.

Last summer, 18 Earth science data corps interns completed an immersive summer internship program with CU Boulder, Oglala Lakota College, United Tribes Technical College, Metropolitan State University of Denver and CIRES' Earth Lab, bringing new perspectives to studies of birds, water and Indigenous lands.

A new study finds Midwestern soybean and corn farmers replaced lost airborne sulfur with sulfur fertilizer, and the environmental impacts may include downstream mercury contamination.

A new CIRES-led study finds germicidal ultraviolet light disinfection can be used to fight COVID-19 in high-risk environments. However, the technique produces harmful secondary chemicals in indoor air, with a significant but not overwhelming impact. There are multiple strategies that can be used to minimize the air quality impact, which are now under investigation.

CIRES co-authored work shows tribal practices blunted wildfires鈥� impacts in the American Southwest. Bringing 鈥済ood fire鈥� back to the U.S. and other wildfire-prone areas, as Native Americans once did, could potentially blunt the role of climate in triggering today鈥檚 wildfires.

A CU Boulder-led team is pushing for climate scientists to put the more likely and plausible middle-of-the-road scenarios at the research forefront instead of solely the worst-case futures.

The Greenland Place Name Committee has named a glacier 鈥淪ermeq Konrad Steffen鈥� after the late Konrad Steffen, former director of CIRES, who made exceptional contributions to Greenlandic society and science.

A new CU Boulder study shows iodine from desert dust can decrease air pollution, but it could prolong greenhouse gas lifetimes.

In the aftermath of the destructive Marshall Fire, CU Boulder and CIRES experts have compiled a resource of post-wildfire indoor air quality facts and solutions to mitigate smoke impacts in your home or business.