Live data from Hacker News

Tasty Seaweed Reduces Cows’ Methane Emissions by 99%

goodnewsnetwork.org

211–220 of 409 posts

Re: Tasty Seaweed Reduces Cows’ Methane Emissions by 99%

#211
post #37

Earlier quoted context omitted.

You can not grow enough fruits, vegetables and nuts to feed the human population without severe deforestation. Also, agriculture uses up pretty much most of the obtainable drinkable water.

Can you sustainably feed all of humanity by feeding cattle from all the world's grasses? I don't understand your position. What's the better alternative to a more plant-focused diet?

1. No. 2. Insects.

Re: Tasty Seaweed Reduces Cows’ Methane Emissions by 99%

#213
post #172

Skeptical science remark: This whole "if cows eat seaweed that'll vastly reduce their carbon footprint" is based on a single study with 12 cows. If you take into consideration that especially small, never replicated studies often don't hold up to scrunity the next thing to do is not to ask how to produce the seaweed. The next reasonable step would be to try to replicate this study in a larger sample (and probably als…

You're absolutely right, but the effect size is pretty damn impressive and I expect this to at least partially replicate.

Having a small sample and a large effect doesn't mean you're guaranteed at least some effect on a large sample. If anything, a very large effect is more likely to indicate a flaw in your method.

Re: Tasty Seaweed Reduces Cows’ Methane Emissions by 99%

#214

Earlier quoted context omitted.

But almost nobody is eating pasture-raised meat, though the industrial meat complex loves that you think that or are pointing it out as if that's how beef is made.

I asked a small town butcher in Scotland if his beef was grass-fed and got seriously laughed at. Then he sold me some damn good steaks.

Because it was, or because it wasn't?

I mean, I'd guess it was, but equally it could be "why do you care, it tastes good", so ...?

Re: Tasty Seaweed Reduces Cows’ Methane Emissions by 99%

#215
Question from the peanut gallery:

The gut bacteria in a cow digest components of the animal's food preferentially and excrete methane. If you knock those bacteria out, does the stuff the bacteria would have eaten get excreted by the cow? If so, do the organisms that digest it external to the cow emit greenhouse gases?

Re: Tasty Seaweed Reduces Cows’ Methane Emissions by 99%

#216

Earlier quoted context omitted.

You're absolutely right, but the effect size is pretty damn impressive and I expect this to at least partially replicate.

Having a small sample and a large effect doesn't mean you're guaranteed at least some effect on a large sample. If anything, a very large effect is more likely to indicate a flaw in your method.

My prediction would be the same for humans who have a large salt intake. Cardiac problems for cows.

Re: Tasty Seaweed Reduces Cows’ Methane Emissions by 99%

#217

Disclaimer: I'm plant-based, and of course biased. What would it take people to realise that eating meat is just not good for the environment and rather than going through all these 'fixes', just stop eating meat? We're getting to the point where we're going to have to sacrifice some 'comforts' IMO.

> just stop eating meat?

For most people that's simply not an option. But, if all people were eating just a little less meat, that would be an incredible improvement already.

I believe we better fight down the meat problem with small steps, especially by creating more delicious plant based food for the mainstream, creating an alternative that is really hard to resist because it tastes so good.

Re: Tasty Seaweed Reduces Cows’ Methane Emissions by 99%

#218
post #209

That's cool, but let's not forget that methane stays in atmosphere only for 12 years. That means that if methane production stays constant, it doesn't actually increase amount of methane in atmosphere. Therefore I think that reducing production of greenhouse gases with longer longevity should be preferred.

You don't need to prefer one or the other. We should do both.

Re: Tasty Seaweed Reduces Cows’ Methane Emissions by 99%

#219

More of a philosophical perspective here: The eco-systems on Earth have evolved over a long time. Without bias against scientific progress, why do we think we can "solve" this without going down a slippery slope of creating another problem? When is comes to complex systems that we don't completely understand, maybe the simplest solution is to just restore the system, that is "give up" on cows as human feed.

That's obviously the most elegant, best solution. But the time for such is long past. It's clear that humanity will not stop consuming, and expecting endless growth. At least for a few generations. In the short term, we need any win we can get, even if there are risks.

Re: Tasty Seaweed Reduces Cows’ Methane Emissions by 99%

#220
post #176
post #73

But not water usage, land usage, suffering for sentient beings, transport of feed, waste of human food for feeding etc etc

I am pretty sure that growing rice requires land, water, and transport. And I do not think cows eat human food nor humans would be very pleased to eat what cows eat.

What cows eat? Ah you mean soy. Nah we can’t use that. Would be a shame if the cow used 10x the amount of calories to grow before we eat it when we could eat the crops instead and make your comment look uninformed
Post reply on HN