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Scientist discovers particular seaweed nearly eliminates cow methane emissions

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101–110 of 152 posts

Re: Scientist discovers particular seaweed nearly eliminates cow methane emissions

#101

Lab-cultured meat is fast becoming cheaper and safer than growing subsidized crops (and all the water, diesel fuel and fertilizer that entails) and slaughtering an actual animal risking vCJD. Skip most of the climate change, animal cruelty and customer risks by growing something far more ethical and responsible.

Cows fart methane even if they are just fed for milk. I'd rather have cow from milk than a synthetic substitute.

You can also have milk from plants.

Re: Scientist discovers particular seaweed nearly eliminates cow methane emissions

#102
post #44
post #35

Earlier quoted context omitted.

Wouldn't it be better/cheaper just to make and feed the cows some bromoform ?

It's an ozone-depletant, so you want a natural source. And algae naturally soak it up from sea water, so you don't have to extract it from minerals or anything like that. Plus I assume that it being part of the plant matters slows its release.

The algae produce it.

Re: Scientist discovers particular seaweed nearly eliminates cow methane emissions

#103
post #75

Earlier quoted context omitted.

Not the OP, but the typical conclusion would be "effective altruism indicates I should stay in tech and give money to helping fisherman transition to seaweed farming." It's very hard to pass this analysis, since "high tech" is almost universally more valuable to humanity, per unit, that something low tech like farming. If you're already in tech and you want to "help the world", giving money is almost always the best…

Agriculture is not "low-tech".

The more I read, the more it seems as though agriculture has been at the cutting edge of technology for millennia.

Re: Scientist discovers particular seaweed nearly eliminates cow methane emissions

#104
This is huge news for New Zealand, one of the challenges that we face in meeting our climate change goals is the fact that a large part of our economy is based around agriculture, it's not as easy as replacing some coal power plants for us because 80-90% of our energy generation is green as it is. And it's also not easy for us to change the type of agriculture because the world does still need food. A lot of money is being spent on solving this problem.

Re: Scientist discovers particular seaweed nearly eliminates cow methane emissions

#105

There probably isn't an incentive to reduce methane emissions for farmers right now though, right? We'd have to pass regulations mandating a reduction, or an emissions tax or something.

We check run off, waste disposal, animal welfare, and a lot of other things on farms. It's all done with spot checks, I'd imagine this will be the same.

Re: Scientist discovers particular seaweed nearly eliminates cow methane emissions

#106
post #72

Earlier quoted context omitted.

US does the same actually. $.05 tax on all bottles, $0.05 payment for recycling. It used to get people to recycle but now the penalty is too small to be worth it. On the flip side, rooting through garbage cans for recycling deposits is now a viable source of income for urban poor.

On the other other hand, we're essentially paying urban poor to empty cans and strew garbage over the sidewalk.

They never make a mess where I live. They know to never become a nuisance of the cops will start to harass them.

Re: Scientist discovers particular seaweed nearly eliminates cow methane emissions

#107
post #65

Earlier quoted context omitted.

Note that this study is about "in vitro" analysis. High iodine contents and toxic compounds might make this algae not suitable as bovine fodder. Furthermore this is tropical algae and it traditionally hand harvested making it very expensive to produce. I don't know if it could be mass produced in sea farms. Source: http://uses.plantnet-project.org/en/Asparagopsis_taxiformis_...

At first I was confused... thanks for pointing out that this study is totally impractical. Cattle, like most ruminants, rely on the fermentation of cellulose for most of their energy needs. Any feed additive that shuts down this process will result in malnourished cattle, and is unlikely to see broad adoption in the industry. Luckily for the PEI farmer, the seaweed he used didn't have this effect.

That's covered in the paper. The in vitro test was on bacterial samples that do that very fermentation and measured the output of nutrients (fatty acids) that can be absorbed by the animals.

I.e. shutting down the methanogenesis does not shut down all fermentation, it just takes other pathways. It is not an essential component.

Re: Scientist discovers particular seaweed nearly eliminates cow methane emissions

#108
post #90

Earlier quoted context omitted.

OP here. Your assuming I'd stay in tech to arbitrage the wage gap to give altruistically. You discount that maybe working in tech isn't what makes me happy (disclaimer: I like my current gig because of the people I get to work with, but nothing is forever), farming seaweed from my 41 foot catamaran (now depreciable as a business expense if commercially farming seaweed) might make me happier after working in tech for…

could you tell me more about using a boat for seaweed farming?

https://medium.com/invironment/an-army-of-ocean-farmers-on-t...

Re: Scientist discovers particular seaweed nearly eliminates cow methane emissions

#109
post #42

Earlier quoted context omitted.

What were the conclusions of your research?

Not the OP, but the typical conclusion would be "effective altruism indicates I should stay in tech and give money to helping fisherman transition to seaweed farming." It's very hard to pass this analysis, since "high tech" is almost universally more valuable to humanity, per unit, that something low tech like farming. If you're already in tech and you want to "help the world", giving money is almost always the best…

I think 3D sea farming would be easier and more profitable.

http://greenwave.org/3d-ocean-farming/

Re: Scientist discovers particular seaweed nearly eliminates cow methane emissions

#110

Earlier quoted context omitted.

Not the OP, but the typical conclusion would be "effective altruism indicates I should stay in tech and give money to helping fisherman transition to seaweed farming." It's very hard to pass this analysis, since "high tech" is almost universally more valuable to humanity, per unit, that something low tech like farming. If you're already in tech and you want to "help the world", giving money is almost always the best…

OP here. Your assuming I'd stay in tech to arbitrage the wage gap to give altruistically. You discount that maybe working in tech isn't what makes me happy (disclaimer: I like my current gig because of the people I get to work with, but nothing is forever), farming seaweed from my 41 foot catamaran (now depreciable as a business expense if commercially farming seaweed) might make me happier after working in tech for…

What are your thoughts on sea farming?

http://greenwave.org/3d-ocean-farming/

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