This page last reviewed April 3 2018

Dairy and Livestock Subgroup #3: Research Needs, Including Enteric Fermentation

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News and Upcoming Meetings

  • The last Subgroup #3 meeting took place on April 02, 2018. Meeting documents are available here.
  • Subgroup #3 has developed "Request for Ideas" (RFI) process for all interested parties to submit research ideas that cover one or more of the four knowledge shortfalls and research needs identified previously. Details of the RFI submission guidelines are described here.
  • The Main Working Group held its most recent meeting on January 5, 2018. Presentations and documents have also been posted here.  

Subgroup #3 Mission Statement

The main purpose of Subgroup #3 is to prioritize dairy research projects that improve our knowledge on:

  1. The accuracy of greenhouse gas (GHG) and other air pollutant emissions from California dairies.
  2. The potential GHG emission reductions and air quality impacts (positive and negative) from the implementation of methane mitigation strategies.
  3. Enteric fermentation emissions (including short and long-term impacts potential reduction measures could have on dairy product quality and consumer acceptance, animal health and welfare, dairy economics, water quality, and air quality).
The goal of Subgroup #3 is to develop a comprehensive Dairy Air Research Prospectus that outlines various research concepts addressing the knowledge gaps in dairy air research described below. It will help guide California’s funding agencies and organizations prioritize future research projects.


By the end of 2018, Subgroup #3 will present the final Dairy Air Research Prospectus document to the Oversight Group of the Dairy and Livestock Working Group based on research ideas from subgroup members, community members, researchers, government agencies, and industry stakeholders through public solicitation processes. The prospectus will help ensure that the goals set under SB 1383 are met, while minimizing the impact of other air pollutants and greenhouse gases.

Dairy Research Knowledge Shortfalls

Subgroup #3 has identified four major knowledge shortfalls and research needs. They include:
  1. Assess localized air pollution issues associated with dairies, especially in environmental justice communities.
  2. Develop a long-term dairy GHG and air monitoring program to track progess on reducing emissions.
  3. Improve emission inventories (e.g. methane, ammonia, etc.) using California-specific data.
  4. Regional GHG and air quality modeling to evaluate short and long-term benefits of air pollution mitigation strategies.

Additional Resources

Calfornia Dairy Greenhouse Gas and Air Quality Research: Summary

"Tasks and Timeline" Subgroup #3 Presentation: RFI Development

Request for Ideas (RFI) Process

The Dairy and Livestock Subgroup #3 (Research Needs, Including Enteric Fermentation) has sent out a call for RFI submissions to where all potential contributors from academia, industry, government and the public can submit various research ideas that can help California achieve SB 1383 goals while addressing the knowledge shortfalls and research needs as identified by the subgroup. Participants must use the RFI Submission Form. Further details on the RFI solicitation process can be found on RFI Submission Guideline Document or the RFI Submission webpage link below. The deadline to submit is May 31, 2018 at 5:00PM (PDT).

The RFI submissions will be pre-screened for completeness and appropriate content. Submissions that pass the pre-screening process will be reviewed by Subgroup #3 committee members using the following evaluation criteria:
  • Air Impact
  • Industry Impact
  • Policy/Regulation/Program Relevance
  • Feasibility
At the end of the review process, Subgroup #3 will draft a Dairy Air Research Prospectus which will provide recommendations to the most feasible research needed to address SB 1383 goals under each of the knowledge shortfalls.

Participants of the RFI should also consider the following:
  • The score and the rank assigned to each RFI submission during the review process do not translate to future funding, nor lack thereof.
  • The RFI submissions may be incorporated into the final Dairy Air Research Prospectus document and disseminated to government agencies and non-government organizations for their consideration during the development of future projects and competitive solicitations(s).
  • The RFI submissions may be modified or edited prior to its incorporation into the Dairy Air Research Prospectus.

Subgroup Members 

Member Affiliation
  • Paul Sousa (co-chair)
  • Western United Dairymen
  • Robert Parkhurst (co-chair)
  • Environmental Defense Fund
  • Michael FitzGibbon (co-chair)
  • Air Resources Board
  • John Capitman
  • Fresno State University
  • Noelle Cremers
  • California Farm Bureau Federation
  • Craig Frear
  • Regenis
  • Curt Gooch
  • Cornell University
  • Alexander N. Hristov
  • Penn State University
  • Ermias Kebreab
  • UC Davis
  • April Leytem
  • USDA (Agricultural Research Service)
  • Deanne Meyer
  • UC Davis
  • Dolores Barajas-Weller
  • Central Valley Air Quality Coalition

Public Meetings

Date Time Location Materials and Links
April 02, 2018 1:00 PM – 4:00 PM  CA Department of Food and Agriculture Building
Main Auditorium
1220 N Street
Sacramento, California  95814
February 28, 2018 1:00 PM – 4:00 PM CA Department of Food and Agriculture Building
Main Auditorium
1220 N Street
Sacramento, California  95814
December 18, 2017  9:00 AM – 12:00 PM CA Department of Food and Agriculture Building
Main Auditorium
1220 N Street
Sacramento, California  95814
August 14, 2017
(Kickoff Meeting)
1:00 PM – 3:00 PM CA Department of Food and Agriculture Building
Main Auditorium
1220 N Street
Sacramento, California  95814


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Staying in Touch

To receive electronic notices of future meetings and availability of materials related only to Subgroup #3 (Research Needs, Including Enteric Fermentation), you can sign up with the subgroup list server at:

For information, please contact:
Dan Weller at

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