CH4 Global raises $29 million for cattle methane-reducing feed supplement

Climate-tech firm CH4 Global raised $29 million in Series B funding for Methane Tamer, a seaweed feed supplement cutting cattle methane up to 90%. The technology is positioned for agriculture-driven economies including India, where livestock methane is a major emissions source.

CH4 Global, a Nevada-based climate-tech company, raised $29 million in a Series B round to scale Methane Tamer, a cattle feed supplement using Asparagopsis seaweed. Enteric methane, released through bovine burps, accounts for roughly 30% of human-induced methane emissions. Operating in the rumen, a small daily dose of the supplement is proven to reduce methane emissions by up to 90%. CH4 Global targets gigatonne-level CO2-equivalent reductions by 2030 through scalable agricultural methane solutions.

The development is positioned for agriculture-driven economies including India, Australia, and Brazil, where livestock is a key economic pillar and methane impact is pronounced. The technology affects dairy and cattle producers, feed manufacturers, and agricultural supply chains. CEO Steve Meller framed enteric methane as a significant climate challenge requiring natural, effective solutions. The company presents Methane Tamer as both an environmental intervention and a business opportunity across these livestock-intensive markets.

Indian dairy and livestock stakeholders should monitor seaweed-based feed-supplement approvals, supply availability, and cost as enteric-methane reduction gains regulatory and market attention. Given that enteric methane represents about 30% of human-induced methane emissions, affected entities should evaluate feed-additive trials and emissions-reduction efficacy. Producers and feed manufacturers should track scalability of Asparagopsis cultivation and integration into existing feed systems as livestock methane becomes a focus of agricultural climate policy.

Key figure — Methane reduction: up to 90%; Series B funding of $29 million