Seminar: Keeling Lecture-Earth Week: Dr. Manvendra Dubey, Los Alamos National Laboratory Fellow in Earth & Environmental Sciences

Event Type

Lecture

Sponsor

Professor Larry Di Girolamo

Date

Apr 17, 2023   4:00 - 5:15 pm  

Views

35

Greenhouse Gases Observations 1957-2100: Past, Present & Future

Dr. David Charles Keeling’s precise CO₂ observations at the remote Mauna Loa site discerned its global rise that is attributed to emissions from human activities.  His Keeling curve is the observational framework to examine anthropogenic climate change that has expanded to other greenhouse gases (GHGs) and monitoring techniques. The accelerating GHG rise and the heat absorbed by them led to concerns about climate change that have exacerbated. My lecture will: 

1. Trace how multiple long-term atmospheric CO₂ observations (in situ surface, and total column from ground and satellites) have helped quantify that vegetation and ocean soak up half of the human CO₂ emissions and elucidate regional fluxes (national to Amazon). 
2. Describe international agreements that slowed the rise of halocarbons and strengthening policies to reduce CH₄, CO₂ and N₂O emissions. Highlight how novel CH₄ observations are helping constrain emissions (at Four Corners, dairies and cities) 
3. Discuss the future trajectory of CO₂ and monitor efficacy of decarbonizing efforts and carbon credits. Stress that positive carbon-climate feedbacks pose a risk, and their early detection is key to mitigation.

Co-sponsored by the Institute for Sustainability, Energy, and the Environment (iSEE)

Zoom Webinar:

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https://illinois.zoom.us/webinar/register/WN_iecmeDp3RveSqQykKrNpnw  

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