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New Studies: The Environmental Benefits of Corn Ethanol

In formal comments submitted to the Environmental Protection Agency (EPA), Growth Energy urged the agency to finalize robust renewable volume obligations (RVOs) under the Renewable Fuel Standard (RFS) for 2023-2025. Growth Energy backed its comments with two new studies reaffirming the need for EPA to accurately model bioethanol’s climate benefits and reject unsupported claims that attempt to diminish bioethanol’s significant environmental benefits.

The research submitted by Growth Energy includes a report from Ramboll, building on previous research submitted in 2019 that debunks much of the flawed science concerning biofuels’ effect on land use change and other environmental impacts, including under the Endangered Species Act (ESA). The study adds to the wealth of public and private data demonstrating that the RFS remains “unlikely to result in material land conversion” or other impacts requiring further ESA reviews. A few key points from the study include:

  • There is no evidence of a causal link between the Renewable Fuel Standard (RFS) and land use change (LUC).
  • There is no credible evidence that the proposed RVO standards will adversely affect wetlands, ecosystems, wildlife habitat, or water quality.
  • Modeling indicates that the statistical dependency between the implied conventional volume and corn prices is non-existent to very weak.

Growth Energy also submitted a report conducted by Environmental, Health and Engineering, Inc. which further highlights the important additional environmental and public health benefits of higher ethanol blends and adds to the literature knocking down flawed science on land use change.

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Trending Video

Supplemental Nitrogen on Soybeans: Can Early Nitrogen Increase Yield?

Video: Supplemental Nitrogen on Soybeans: Can Early Nitrogen Increase Yield?

Can supplemental nitrogen help soybeans reach higher yield potential? Technical Agronomist Tim Sickman walks through an ongoing trial at the Nutrien Innovation Farm in Owensboro, Kentucky, exploring whether a modest amount of nitrogen applied at planting can support higher-yielding soybean environments.

The trial compares 30 pounds of supplemental nitrogen across both 15- and 30-inch rows, along with treatments that include sulfur and micronutrients. Similar trials conducted in 2024 and 2025 delivered a six- to seven-bushel yield response, prompting the team to expand the research this season.

Early observations show that treated soybeans are slightly taller and averaging about two additional nodes on the main stem. These added nodes could create more opportunities for blooms and pods, but the true results will come at harvest when the team evaluates pod development, seed fill and final yield.

In This Video:

Why high-yield soybeans may need supplemental nitrogen

Results from the 2024 and 2025 trials

Nitrogen treatments in 15- and 30-inch rows

Fertilizer placement and application methods

Differences in plant height and node counts

Potential effects on pod development and yield