Recent Publications
Food without agriculture
Nature Sustainability | November 6, 2023
Edible molecules can be directly synthesized without agricultural feedstocks, saving land, water and GHG emissions. Dietary fats made from natural gas feedstock and average U.S. electricity would emit ~0.8 gCO2-eq/kcal (and 0 if using atmospheric carbon and renewable electricity) compared to 1-3 gCO2-eq/kcal from agricultural fat production.
Pathways to net-zero emissions aviation
Nature Sustainability | January 30, 2023
We assess nine possible pathways to achieve net-zero emissions from aviation, including changes and trade-offs in demand, energy efficiency, propulsion systems, and alternative fuels for both passenger and freight transport, as well as atmospheric carbon removal to offset non-CO2 radiative forcing.
Economic and biophysical limits to seaweed farming for climate change mitigation
Nature Plants | December 23, 2022
Global modeling shows that potential climate benefits of farming seaweed are large but sensitive to uncertain yields and competition with phytoplankton. We also find that carbon removal by sinking seaweed is much costlier than avoiding emissions by substituting seaweed for land-based crops.
Recent News
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Searching for the Next Hot Cooking Oil? It Could Be From Algae
An oil made by fermenting microalgae is touted for health and sustainability—but will people bite? -
What Running Tide's demise means for carbon removal's future
The buzzy marine startup blamed its downfall on a lack of demand. But would a more mature market have saved it?
