A project in Ireland is exploring the potential of feeding cows and sheep with marine algae to reduce methane emissions, as part of a larger initiative to revitalize the seaweed harvesting industry and build on traditional practices. The project has found that feeding animals with certain seaweed species can lead to methane emission reductions of up to 20%. However, it may not achieve the emission reduction levels seen with Asparagopsis, a type of marine algae that has shown promising results in reducing methane. The project aims to find native algae species in Ireland to replace Asparagopsis, although reduction levels may not reach miraculous cures, they could still significantly decrease emissions.