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Home > Our Changing World > Summer science: Methane-busting seaweed


	Podcast:		Our Changing World
	Episode:		Summer science: Methane-busting seaweed
	Category:		Science & Medicine
	Duration:		00:13:40
	Publish Date:		2026-01-19 16:00:00
	Description:		A Southland company is growing red seaweed as a supplement that’s been shown to significantly reduce methane emissions in beef and dairy cattle. In our last summer science series episode, Cosmo Kentish-Barnes of the Country Life team heads to Bluff to learn more. Sign up to the Our Changing World monthly newsletter for episode backstories, science analysis and more. Learn more: You can read Cosmo Kentish-Barnes' story about this topic, Red seaweed cuts methane emissions from cattle, scientists say. Cosmo signed off from the Country Life team earlier this year, after 17 years as the show's South Island producer. You can listen to his final episode. There are also pāua and whitebait farms operating out of the Ocean Beach Aquaculture Hub in Bluff. Kate Evans visited both ventures in a 2024 episode of Voice of Tangaroa, Fish out of water. Guest: Brent Jackson, production scientist Go to this episode on rnz.co.nz for more details
	Total Play:		0

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