Discover CALS

See how our current work and research is bringing new thinking and new solutions to some of today's biggest challenges.

By Catherine Andreadis '22
  • Cornell Cooperative Extension
  • Animal Science
  • Agriculture
  • Field Crops
  • Environment
As the dairy industry faces mounting pressure from consumers to report on environmental sustainability impacts, a collaboration between Cornell’s College of Agriculture and Life Sciences and Chobani is aimed at helping dairy farmers reduce their environmental footprint.

A $500,000 grant from Chobani to Quirine Ketterings, professor of nutrient management in the Department of Animal Science in Cornell CALS and director of the Cornell Nutrient Management Spear Program (NMSP), will allow continued development of sustainability best practices for dairy farmers and will document the progress agriculture is making towards becoming more sustainable.

The NMSP, which is home to the Dairy Sustainability Key Indicators Project, partners with farmers and farm advisers to conduct research. In 2020 Roberta Osborne, director of farms and sustainability for Chobani, approached Ketterings with an interest in funding research that shows precisely how dairy farmers are making strides in such areas as nutrient use, greenhouse gas emissions, water use, water quality impacts, animal and plant production efficiencies, and biodiversity on farms.

“I immediately thought to go to our land-grant universities when consumers increasingly asked for sustainability reports,” Osborne said. “Cornell has boots on the ground with farmers actively encountering changes in agriculture.”

The project will expand NMSP’s whole-farm nutrient mass balance assessments for farms in New York that have been ongoing since 2005. These assessments measure the amount of phosphorus, nitrogen and potassium that farms use and recycle to produce crops and milk. As part of the grant, Ketterings and her team work with a cohort of about 40 farms that annually submit data for the whole farm nutrient mass balance assessment. Farmers who participate are able to see how their nutrient use compares to peers within the state, incentivizing them to reduce their environmental footprint to feasible levels.

“This project will not only build on our existing understanding of dairy sustainability key performance indicators, or KPIs, obtained from our ongoing work but will expand on this. It will help us focus on identification of management changes that have a positive impact on a range of dairy farm sustainability credentials,” Ketterings said.

The project will assess a variety of tools for their data input needs and the comparability of their results. In addition, it will identify the key drivers of the results from each tool (e.g., crop yields, fertilizer use, feed purchases, herd replacement rate). The researchers will then develop recommendations for tools or specific KPIs that can be used by farmers to obtain comprehensive sustainability assessments, and to accurately monitor the impact of management changes over time.

“This approach allows farms to set a roadmap for continuous improvement, meet the reporting requirements of co-operatives and retailers, and communicate better their current environmental achievements and future progress, while maintaining or improving dairy economic sustainability,” Ketterings said.

Chobani’s funding combined with external funding from the Northern NY Agricultural Development Program, Towards Sustainability Foundation, and the Cornell Cooperative Extension Summer Internship Program, has allowed 13 commercial dairies to be included as case study farms, more than double the original cohort of six. Feedback from the farmers is critical to ensure accessibility and practicality with the use of these tools.

“It’s important that industry and consumers are aware of what sustainability challenges exist in the dairy industry and can recognize that dairy farmers are actively addressing challenges in terms of environmental management,” Ketterings said. “Having farmers take part in communicating these ideas by donating their data as part of our study is a testament to how hard they're working to make improvements, and this is something we hope the public will appreciate.”

Catherine Andreadis is a student writer for the Cornell CALS Department of Animal Science.

Keep Exploring

Five panelists pose for photo


Emerson Hall at Cornell CALS buzzed with anticipation as eager students and faculty gathered to gain valuable insights into the complex relationship between development and the environment. This enlightening presentation was delivered by four...
  • Department of Global Development
  • Environment
  • Global Development
Group of students on stage


Hosted by the World Food Prize Foundation in Des Moines, Iowa, global development professionals and foreign governments gathered for bilateral meetings and main stage sessions. Conversations focused on conflict resilience in the food system...
  • Agriculture
  • Global Development