Ethanol is not doing something about climate change. Corn ethanol is not energy positive. It's straight green washing, with more energy (oil and other hydrocarbon derived products) in than out. Sugar ethanol (widespread in Brazil) is energy positive at least, but not by much.

If we end unnecessary corn and ethanol subsidies, ethanol production sunsets. The ethanol industry continues to fight for more ethanol subsidies in the face of future volume declines as EV sales ramp. We harvest 40 million acres in the US for ethanol, as a data point. 40 million acres! Think of the downstream impacts of harvesting all of that land (farm implement emissions, petrol based fertilizer production and application, etc) for corn based ethanol that we're then going to try to bolt CO2 pipelines and capture on to.

Lean into EVs and renewables (including PV agrivoltaics when applicable). Lets leave this dumpster fire of ag energy policy handout to farmers behind.

https://news.ycombinator.com/item?id=37956610 (citations)

https://www.thoughtco.com/understanding-the-ethanol-subsidy-... ("Understanding the Ethanol Subsidy")

https://afdc.energy.gov/fuels/laws/ETH?state=US ("Federal Ethanol Laws and Incentives")

https://www.taxpayer.net/energy-natural-resources/understand... ("Understanding U.S. Corn Ethanol and Other Corn-Based Biofuels Subsidies: Taxpayers have subsidized the mature corn ethanol industry for more than 40 years")

https://www.sciencedirect.com/science/article/abs/pii/S09218... ("Light-duty vehicle fleet electrification in the United States and its effects on global agricultural markets")

https://www.reuters.com/business/environment/us-corn-based-e... ("U.S. corn-based ethanol worse for the climate than gasoline, study finds")