A farm in Ohio

Air quality improvements lead to more sulfur fertilizer use

Jan. 12, 2023

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.

UV light

Ultraviolet light can annihilate COVID-19 aerosols, but there’s a tradeoff with air quality

Dec. 15, 2022

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.

Coronado National Forest

Indigenous fire management buffered climate impacts for centuries

Dec. 12, 2022

CIRES co-authored work shows tribal practices blunted wildfires’ impacts in the American Southwest. Bringing “good fire” 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’s wildfires.

Shanghai skyline

Researchers studying climate futures shouldn’t jump to extremes

Oct. 19, 2022

A CU 鶹-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.

Konrad Steffen with ice covering his mustache

Glacier named for Konrad Steffen, former CIRES director

June 21, 2022

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

Mountain range

Iodine in desert dust destroys ozone

Jan. 5, 2022

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

Fire in 鶹

How to mitigate post-fire smoke impacts in your home

Jan. 5, 2022

In the aftermath of the destructive Marshall Fire, CU 鶹 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.

Thwaites Glacier

The threat from Thwaites: The retreat of Antarctica’s riskiest glacier

Dec. 14, 2021

Antarctica’s Thwaites Glacier is retreating rapidly as a warming ocean slowly erases its ice from below, leading to faster flow, more fracturing and a threat of collapse. The glacier is the size of Florida or Britain and currently contributes four percent of annual global sea-level rise.

icebreaker

How to park a ship in ice

Sept. 25, 2019

Loaded with research equipment and CU 鶹 scientists, the RV Polarstern icebreaker is steaming towards the central Arctic, searching for the perfect parking spot next to an ice floe.

CIRES researcher Matthew Shupe talks Thomas Krumpen from the Alfred Wegener Institute

Epic climate science mission begins

Sept. 20, 2019

Hundreds of researchers from 19 countries are launching a yearlong journey to study Arctic climate.

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