Live data from Hacker News

Tasty Seaweed Reduces Cows’ Methane Emissions by 99%

goodnewsnetwork.org

51–60 of 409 posts

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

#51
post #44

My company is currently working to grow Asparagopsis Taxiformis, here in the US, for this purpose. I agree with comments that we have big issues to tackle in regards to methane sinks failing, such as permafrost, and there are things to be said about people moving en masse to plant based diets – but, the future will always be a mix of tomorrow and today. Many people will still eat beef, and we need to ensure we reduce…

Seems like just growing seaweed won't be enough though. You'd have to grow it _in close proximity to the cows_, otherwise there are other greenhouse gases that will be emitted before the cows can eat it. It's also unclear to me what this means in terms of water consumption, and therefore sustainability. I'd be curious to hear how (if at all) these issues could be addressed.

Doesn't this seaweed grow in the sea? As far as I understand, the main water concerns as relate to cows, are about freshwater for growing fodder.

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

#52
post #24
post #12

Earlier quoted context omitted.

regulation can't change reality. It's about as realistic as having congress declare the world flat.

I’m as anti-regulation as anyone but your comment is just silly. Regulation changes reality all the time.

In fact if regulation didn't change anything there would be no reason to be against regulation.

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

#53
post #43

Earlier quoted context omitted.

From an environmental perspective, it's easier to directly consume fruits, vegetables and nuts yourself, rather than have an animal do the same, then eat the animal. That doesn't address the human appetite for animal proteins, but there is beyond meat.

Humans cannot get or synthesize all of the amino acids from a plant diet.. we need animals or chemistry.

That's not true for most people. You just need to eat a mix of vegetables that provide the "essential" amino acids. https://en.wikipedia.org/wiki/Essential_amino_acid E.g. Mexican corn and beans, Japanese rice and soybeans, or Cajun red beans and rice. You might need a Vitamin B12 supplement to help stitch all those together but the amino acids you need are 100% available from plants.

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

#55
post #44

My company is currently working to grow Asparagopsis Taxiformis, here in the US, for this purpose. I agree with comments that we have big issues to tackle in regards to methane sinks failing, such as permafrost, and there are things to be said about people moving en masse to plant based diets – but, the future will always be a mix of tomorrow and today. Many people will still eat beef, and we need to ensure we reduce…

Seems like just growing seaweed won't be enough though. You'd have to grow it _in close proximity to the cows_, otherwise there are other greenhouse gases that will be emitted before the cows can eat it. It's also unclear to me what this means in terms of water consumption, and therefore sustainability. I'd be curious to hear how (if at all) these issues could be addressed.

We aim to grow close to consumption.

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

#57

Earlier quoted context omitted.

[flagged]

No they aren't the biggest part of the problem, but the difficulty is that we have to solve the whole thing. Carbon emissions need to get to zero and then go negative. That means ideally we need solutions for every contributor, no matter how small.

I agree that cows are an issue that should be looked into, but ultimately cows themselves aren't causing more carbon to be taken from the ground and left in the atmosphere indefinitely (the issue is that methane is a greater contributor to the greenhouse effect over carbon dioxide, per unit carbon), so presumably in this case it's a matter of keeping methane levels below a certain amount rather than reversing carbon emissions.

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

#58
post #44

Earlier quoted context omitted.

Seems like just growing seaweed won't be enough though. You'd have to grow it _in close proximity to the cows_, otherwise there are other greenhouse gases that will be emitted before the cows can eat it. It's also unclear to me what this means in terms of water consumption, and therefore sustainability. I'd be curious to hear how (if at all) these issues could be addressed.

Doesn't this seaweed grow in the sea? As far as I understand, the main water concerns as relate to cows, are about freshwater for growing fodder.

This seaweed does grow in the sea, obviously, however there isn't nearly enough of it in the sea to provide for the US (or worldwide, for that matter) cattle market.

Further, this particular seaweed is presently undomesticated – which means that of the various types of algal cultivation methods (rope culture, tumble culture, etc) no one has quite gotten down the best means of getting stable growth out of the strain. This is what we are working to do.

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

#59
post #37

Earlier quoted context omitted.

From an environmental perspective, it's easier to directly consume fruits, vegetables and nuts yourself, rather than have an animal do the same, then eat the animal. That doesn't address the human appetite for animal proteins, but there is beyond meat.

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.

A large fraction of "agriculture" goes to feeding livestock, inefficiently. Some land is used for animal feed that is not usable for crops people would eat, but the conversion ratio for a lot of it would be better if we grew food for ourselves directly.

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

#60
post #2

I feel like I read this same story once a year or so for the past 5-6 years. Why hasn't this been commercialized yet?

There's an outfit in New Zealand that sells seaweed as cattle feed, not sure if it's the same stuff though.
Post reply on HN