Sweden Embraces Seaweed as a Powerful Solution Against Methane Emissions

Sweden is taking its research on reducing methane emissions in cows to the next level. Encouraged by early developments in the field, the country’s Environmental Protection Agency, in partnership with other agencies, has received government approval to study the potential of feed additives such as seaweed and the chemical 3-nitrooxypropanol, as reported by the Guardian. Additionally, the study might explore genetic variations between breeds that could impact methane emissions, with the ultimate goal of creating “climate-smart cows.”

The concept of using seaweed to reduce methane emissions in cows originated from Australian researchers, and University of California Davis researchers have also found success with seaweed as an additive. The seaweed helps to prevent microorganisms in a cow’s first stomach from producing methane. It’s important to note, however, that there is limited knowledge about the long-term effects and socioeconomic impact of these additives, according to the Guardian. Farmers may require financial assistance to cover the costs of implementing the additives, as suggested by an agency analyst. A pilot project is planned for the UK next year, and the European Union has already approved the use of the chemical 3-NOP in dairy cows due to its significant reductions of methane emissions in both dairy and meat cattle, with reductions of 30% and 45% respectively, according to the Swedish agency. (Read more methane stories.)