How harvesting seaweed could help in the battle against climate change

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Published 2021-12-18
As the effects of climate change continue to accelerate, the U.N. says the strongest lever to reduce global warming is to curb the emissions of greenhouse gas methane. But methane emissions continue to accelerate. CBS News meteorologist and climate specialist Jeff Berardelli has the details on what may be a game-changing solution to slow methane.

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All Comments (14)
  • @jaridkeen123
    We should be doing as much as we can as a society to tackle Climate Change
  • @johnorenick9026
    I've been reading about this for several years. Asparagopsis taxiformis and A. armata can, at just two percent of diet, reduce the methane in cow burps by 99 percent (and sheep, goat, antelope, rhinoceros burps; it took 3 percent of diet to reduce the methane emitted by sheep by 80 percent, in a trial in New Zealand). Asparagopsis works by inhibiting the bacteria, in a ruminant's rumen, that produce methane. Those bacteria are essentially stealing nutrients from the cows' feed, so inhibiting them is indeed supposed to let the cows grow just as fast on 15 percent less feed: sell it based on that, and not on its climate benefits, and farmers will love it. But getting seaweed to all the world's cattle would incur huge transportation costs, and transportation carbon. I suggest that instead we find the gene in Asparagopsis that makes it produce bromoform, the chemical that actually inhibits the methanogens, the bacteria that make the methane, and transplant it into the microalgae we will--if we have half a brain amongst us--be growing everywhere we have wastes to clean up growing it, for oils for everything from transportation to cooking, for starches to make plastics, to eat, to extract nutrients and medicines, and for a host of other purposes. Extract the oils, starches, whatever you are growing the algae for; the remnant is concentrated protein, vitamins and minerals, an excellent livestock supplement. And growing it near where we need it will hugely reduce those transportation costs. Sorry, apparently URLs aren't active in this very primitive program YouTube uses for comments. If you'd like to follow some of my reading, paste these into a browser. “Major cuts of greenhouse gas emissions from livestock within reach,” Food and Agriculture Organization of the United Nations, Sept. 26, 2013, http://www.fao.org/news/story/en/item/197608/icode Xixi Li, Robert Kinley, Hayley C. Norman, Michael Laurence, “Asparagopsis taxiformis decreases enteric methane production from sheep,” ResearchGate, Aug. 2016, https://www.researchgate.net/publication/305768532_Asparagopsis_taxiformis_decreases_enteric_methane_production_from_sheep “Farming Seaweed: Transforming Climate,” Greener Grazing, Australis Aquaculture, accessed June 8, 2020, https://www.greenergrazing.org/ Emma Bryce, “The race is on to hack cow burps and help save the planet,” WIRED, Feb. 8 2020, https://www.wired.co.uk/article/cow-farts-climate-crisis Penn State, “Seaweed feed additive cuts livestock methane but poses questions,” Science Daily, June 17, 2019, https://www.sciencedaily.com/releases/2019/06/190617164642.htm Loz Blain, “Australian seaweed found to eliminate more than 99% of cow burp methane,” New Atlas, Oct. 20, 2016, https://newatlas.com/csiro-seaweed-cow-methane-emissions/46021/ Rebecca Rupp, “A Sprinkle of Seaweed Could Deflate Gassy Cows,” National Geographic, Nov. 29, 2016, https://www.nationalgeographic.com/people-and-culture/food/the-plate/2016/11/seaweed-may-be-the-solution-for-burping-cows/ Gerard Hutching, “NZ scientists say seaweed cure for methane emissions comes up short,” stuff, Dec. 30, 2016, https://www.stuff.co.nz/business/farming/88009884/nz-scientists-say-seaweed-cure-for-methane-emissions-comes-up-short Beth Daley, “Seaweed could hold the key to cutting methane emissions from cow burps,” The Conversation, Oct. 12, 2016, https://theconversation.com/seaweed-could-hold-the-key-to-cutting-methane-emissions-from-cow-burps-66498 Kirrily Blomfield, “RUMINANTS – A methane pest or climate change solution?” the CONSCIOUS farmer, Nov. 25, 2015, http://www.theconsciousfarmer.com/ruminants-methane-pest-carbon-sequesterer/
  • Try selling this idea to the Indian Subcontinent where their total Dairy cow herd is around 43,000,000 cows or 16% of the worlds Dairy herd , who have have in the last few weeks forced the Indian Government to curtail its Farming climate change initiative
  • @donnmckee4973
    Or just maybe if corporations started doing their part we wouldn't have to worry about the seaweed. Just a thought.
  • @crashweaverda
    To bad two thirds of those cows are in India doing nothing but eating burping and multiplying and just hanging out.
  • So here is something for Eweou to figure out? What is 1.745 times 23===='s ??? add that to 430 PPM. That equals ??#er. So what is 3.5% of 430PPM ??? ==='s So what is 2% of that 3.5% ====='s ?? some small number which you can hardly SEE! That is what part ?? produces of mans 3.5% Carbon Dioxide! Since your so smart put in the names of what goes where!
  • @someguy2135
    The good news is that we don't have to wait until this change gets implemented. For an even bigger impact than eating beef with seaweed supplement, just go vegan. "Eating a vegan diet could be the “single biggest way” to reduce your environmental impact on earth, a new study suggests. Researchers at the University of Oxford found that cutting meat and dairy products from your diet could reduce an individual's carbon footprint from food by up to 73 per cent.Sep 24, 2020" Link to the newspaper quote above, on my channel under "About" then "Oxford."