this post was submitted on 20 Apr 2026
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Adelaide University researchers have demonstrated that a naturally derived seaweed compound can dramatically reduce methane emissions from beef cattle raised in extensive grazing systems, without harming calves. The study, published in Frontiers in Animal Science, investigated the use of bromoform extract oil, derived from the red seaweed Asparagopsis, in pregnant and lactating Angus cows.


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[–] OhmsLawn@lemmy.world 2 points 1 day ago

Does it work for humans?

[–] Malyca@lemmy.zip 1 points 1 day ago (1 children)

I remember reading about this years ago. The farmers won't use it because it's an extra expense, despite how effective it is.

[–] FireXtol@piefed.social 1 points 22 hours ago

It makes no difference.

The biggest problem people seem to have is they equivocate methane with CO2.

And chemistry is not that stupidly simple.

Methane or CH4 reacts with hydroxyl(OH) radicals in the atmosphere and turns into CO2 and there's some water vapors and it's kind of a long process so there's some things in between like ozone and ch3 and various other short lived things. Whatever the intermediaries the process completes in about a decade giver minus a few years.

The major driver here is we have oxygen (Angels singing)! So this is guaranteed. If you consider a planet like Venus, which is abundant with CO2 and basically no oxygen, so there are no hydroxyl radicals. Methane becomes much like CO2 and becomes a millennial gas which can stick around for hundreds, tens of thousands to hundreds of thousands of years ... or basically indefinitely.

It's really not that expensive. Sea weed is cheap. Ruminate and others are basically just as effective as seaweed. And seaweed is cheaper than corn or grain or hay....