Cornell will assist the Environmental Defense Fund and the National Dairy Development Board of India – the world’s largest dairy producing country – in a project to help its smallholder farmers reduce methane output and produce milk efficiently.
India is home to 300 million cattle and milk-producing buffaloes, and 85 million smallholder dairy farmers. In 2020, India produced 195 million metric tons of milk, which is 22% of all global production, according to the United Nations’ Food and Agriculture Organization.
Smallholder farmers in India bring milk from their cows to a community dairy cooperative daily. They get paid for the milk on the spot.
India’s population is 1.4 billion; the UN forecasts that it will increase by 194 million by 2030. The number of milk-consuming households is projected to rise from 185 million in 2012 to 349 million by 2050. The country ranks 97 of 118 countries on the Global Hunger Index.
In addition to human nutrition, the scientists must tackle the methane problem, he said. Milk production is inefficient in India, which means its dairy industry produces more methane than they should – as it contributes about 7% of global greenhouse emissions from agriculture.
As a greenhouse gas, methane is more than 80 times more powerful than carbon dioxide over the first 20 years when it gets into the atmosphere, according to EDF. While carbon dioxide lasts longer, methane accelerates global warming.
Currently, the U.S. and European countries abate methane output for dairies by employing science-based genetic, nutrition and management strategies that enhance milk production efficiency, said McFadden, who leads the collaboration with support from the Cornell Atkinson Center for Sustainability.
The average U.S. enteric methane emission intensity is about 0.25 kilograms of carbon dioxide equivalent per kilogram of milk. The greenhouse gas intensity per unit of milk for indigenous cows of India can be as high as 2.96 kilograms of carbon dioxide equivalent per kilogram of milk.
McFadden said this pilot project aims to help smallholder farmers of India work toward developing better diets for milk-producing animals. He noted that it will employ the Cornell Net Carbohydrate and Protein System (CNCPS) – developed on campus with the guidance of Michael Van Amburgh, professor of animal science (CALS) to enhance the efficiency of nutrient use, animal performance and minimize waste.
To fulfill the new agreement, the group will hire a postdoctoral fellow – who will be part of Cornell Atkinson – to conduct research and travel to India to recruit and learn from about 200 farmers for the effort.
Tags: Cornell, EDF, India, Methne, NDDB
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