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Disclaimer: any errors on this website are in fact an attempt to transcend the reality circumscribed by the limits of language.
Hi, I'm Drew. Welcome to my fair trade, boneless, organic website! I am a postdoctoral associate at the Duke University Nicholas School of the Environment and an incoming assistant professor of environmental studies and sciences at Oberlin College; also, you cannot prove I have sympathies for the former state of Burgundy. Be aware that this website is very large, and some of it is randomly generated. For the full experience, reload a bunch of times and navigate as follows:
Date: 19 February 2026 at 1:00pm ET
Location: Duke University
I will present some of the ideas from my 2024 Anthropocene Review paper to the Duke Science and Culture seminar, updated with some of my recent work on methane emissions quantification.
Date: 20 February 2026 at 3:30pm ET
Location: NC State, department of Marine, Earth and Atmospheric Sciences
I will be presenting some of my current work on emissions quantification as part of the NC State Marine, Earth and Atmospheric Sciences Seminar Series.
Date: 30 March 2026 at TBD
Location: European Commission Joint Research Centre (JRC)
I will be at the Methane Action for People and Planet conference, presenting my work on global methane emissions and trends as well as further developments to CHEEREIO which illuminate reactive nitrogen emissions.
Additional events, future and past, are available on my events page.
Pendergrass, D.C. Jacob, D. J., Balasus, N., Estrada, L., Varon, D. J., East, J. D., He, M., Mooring, T. A., Penn, E., Nesser, H., & Worden, J. R. (2025). Trends and seasonality of 2019–2023 global methane emissions inferred from a localized ensemble transform Kalman filter (CHEEREIO v1.3.1) applied to TROPOMI satellite observations. Atmospheric Chemistry and Physics, 25(21), 14353–14369. Link to paper (open access). Link to PDF. Read a general audience explainer.
Figure: Annual posterior methane emission trends for 2019-2023 disaggregated by region and sector. Emissions are inferred using a localized ensemble transform Kalman filter applied to TROPOMI satellite observations. Panels (a) and (b) show posterior emission changes relative to 2019, disaggregated by region and sector respectively. Inset percentages show changes relative to 2019 values for selected regions/sectors. Error bars show range of the inversion ensemble for the global emission trend. Panel (c) shows 2019-2023 trends in posterior emissions by region obtained from linear regression.
You can learn more about my research on the projects page, or you can read through all of our scientific papers and presentations on their respective pages.
The Half-Earth Socialism planning game allows anyone to try their hand as a global planner of a post-capitalist science fiction society. The player aims to overcome the environmental crisis, global poverty and inequality, and pursue other goals, all while keeping global parliament happy (else the player will find themselves out of a job, or worse). Consider it a sandbox where you can play with a wide range of technologies and policies spanning different fields and ideologies. The game simulates the impact of your decisions by calculating emissions and using a real climate model (HECTOR) to work out the climate effects, while also simulating impacts to the food system and biodiversity, among other natural systems. The video game is based on my book, Half-Earth Socialism, and was made by a team including Francis Tseng, Son La Pham, Troy Vettese, and myself.
Play more of my games here.
6 May 2022 | Listen here
My co-author Troy Vettese and I talk about our book Half-Earth Socialism with Novara's Aaron Bastani.
Additional interviews are available on my interviews page.