Research & Fact Sheets

For this program, two fuels, namely an E10 and E15, were tested on twenty 2016 and newer modern gasoline fueled vehicles over triplicate Federal Test Procedure (FTP) cycles. The E10 fuel was...

We recently reviewed the article published by Lark et al. (2022) in PNAS, detected various problematic assumptions, approaches, data, and results in that study. Based on our findings, we concluded that these...

Taheripour et al. recently posted comments on their websites about our peer-reviewed study published in the Proceedings of the National Academy of Sciences (Lark et al. 2022). In their commentary, the authors...

This peer review was conducted in support of Washington State Department of Ecology’s rulemaking for a new rule, Chapter 173-424 WAC, Clean Fuels Program Rule. As part of this peer review, the...

Blending ethanol into gasoline provides a variety of benefits for consumers, the environment, and the U.S. economy more generally. Domestically produced ethanol has largely replaced other fuel additives (which may be harmful...

EPA’s Biofuel Greenhouse Gas Modeling Workshop provided updates on ongoing research related to greenhouse gas (GHG) emissions associated with biofuels. Most of the material covered topics associated with land use conversion and...

Lark et al. (2022) recently published “Environmental Outcomes of the US Renewable Fuel Standard” and addressed domestic land use change (LUC) of corn ethanol and associated greenhouse gas (GHG) emissions that are...

This memorandum provides Net Gain’s preliminary observations regarding Environmental Outcomes of the US Renewable Fuel Standard published by Lark et al. (2022). The work described in this paper appears to be the...

Greenhouse gas (GHG) emissions drive climate change. In the United States, transportation is the largest source of GHG emissions. Petroleum products account for about 90 percent of U.S. transportation fuels, with biofuels,...

The Renewable Fuel Standard (RFS) specifies the use of biofuels in the United States and thereby guides nearly half of all global biofuel production, yet outcomes of this keystone climate and environmental...