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[2] The world produces an estimated 160 billion pounds of it each year, but research shows the world's 1 and a half billion cattle have an outsized impact on the climate.
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[3] They use up a ton of water, and their manure can pollute waterways, but one impact is easier to hear than see.
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[4] That's a cow burping out methane, a greenhouse gas that builds up in a cow's four stomachs as it digests food.
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[5] Globally cattle emit more than 231 billion pounds of methane into the atmosphere every year.
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[8] The seaweed is somewhat of the the Holy Grail⁽²⁾ of you know climate change in terms of solutions from the ocean.
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[9] Dr. Jen Smith is researching how this species of seaweed called Asparagopsis Taxiformis, can stop all that burping.
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[10] Once it is fed to the livestock, it simply prevents methane from ever being formed, and therefore the cows don't burp that methane out of their mouth.
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[11] One study found that adding just a tiny amount of this red seaweed to a cow's diet, reduced its methane emissions between 40 and 98%.
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[12] Now Dr Smith is partnering with an Australian company to scale up production. - The goal is not tally produce it, you know how to do that but do it more efficiently.
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[13] Steve Meller's company CH4 Global makes a red seaweed based feed additive called methane Tamer. It's already being fed to cattle in Australia with plans to grow it worldwide.
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[14] The goal is to perfect the process of growing asparagopsis in outdoor grow ponds, that can be built anywhere with access to ocean water.
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[15] We're giving people the choice to say, "Do I eat that plant-based approach?" or "Do I eat that meat-based approach?" That is now dramatically lowered its carbon footprint.
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[16] Meller expects to see low methane be in US supermarkets by the beginning of next year.
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[17] But he has some big hurdles to clear, like getting the FDA and Congress to agree on how to regulate the seaweed additive.
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[18] Something CH4 is working with lawmakers to change, and the whole idea has some experts skeptical. - I don't want to say it would do nothing, but just wouldn't do enough.
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[19] Jan Dutkiewicz points to recent studies that show less exciting results from red seaweed, and says that the only way to significantly reduce methane emissions is to grow and eat fewer cows.
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[20] I think if we're talking about making large scale changes in the food system, we really need to think about the what and not the how of what we're producing.
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[22] The Little Engine That Could⁽³⁾ so to speak, "And it's red too." - Red seaweed for a Greener future Christine Romans NBC news.