Chad Wolak prepares NOAA air samples for carbon-14 measurement.

Tracking fossil fuel emissions with carbon-14

June 1, 2020

Researchers from NOAA and the University of Colorado have devised a breakthrough method for estimating national emissions of carbon dioxide from fossil fuels using ambient air samples and a well-known isotope of carbon scientists have relied on for decades to date archaeological sites. In a paper published in Proceedings of the National Academy of Sciences, they report the first-ever national scale estimate of fossil-fuel derived carbon dioxide (CO2) emissions obtained by observing CO2 and its naturally occurring radioisotope, carbon-14, from air samples collected by NOAA’s Global Greenhouse Gas Reference Network.

Cassandra Brooks smiles as audience members participate in a question she asked during her speech on March 9, 2020. Photo by Kara Wagenknecht, CU Independent.

Homeward Bound alumni speaks on gender issues in Antarctica (CU Independent)

March 10, 2020

Cassandra Brooks spoke to students and community members Monday night in the CU History Museum on her experience leading Homeward Bound, a global women’s leadership initiative in the Antarctic.

Cassandra Brooks in the snowy landscape of Antarctica.

CU researchers were part of the largest ever all-women expedition to Antarctica (9News)

Dec. 16, 2019

University of Colorado's Cassandra Brooks was one of 111 total women, 2 from CU, who went to the "global commons" of Antarctica in an all-women expedition. She wants more women to do the same. (Video.)

Cassandra Brooks

An interview with Dr. Cassandra Brooks (Nature Climate Change)

June 20, 2019

Cassandra Brooks talks about her research interests, passion for Antarctica, and commitment to science communication and policy with Nature Climate Change.

Colorful satellite image of the Lena River delta flowing into the Arctic ocean

Accounting for the missing silica in the marine sediment cycle (AGU Eos)

Jan. 17, 2018

Shaily Rahman led a study using cosmogenic silicon to estimate the amount of biogenic silica stored in clays along continental margins. The team's findings may explain a longstanding, large discrepancy in the global marine silica budget. Understanding silicon is especially important because of its influence on primary production and the amount of carbon dioxide in the atmosphere.

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