Live data from Hacker News

Scientist discovers particular seaweed nearly eliminates cow methane emissions

cbc.ca

51–60 of 152 posts

Re: Scientist discovers particular seaweed nearly eliminates cow methane emissions

#51

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.

No, and that's not going to happen soon. But companies can start marketing their products as carbon neutral and selling them at a premium at retailers like Whole Foods.

We're talking about methane not carbon.

Re: Scientist discovers particular seaweed nearly eliminates cow methane emissions

#52

Earlier quoted context omitted.

No, and that's not going to happen soon. But companies can start marketing their products as carbon neutral and selling them at a premium at retailers like Whole Foods.

We're talking about methane not carbon.

Methane is a carbon compound.

Re: Scientist discovers particular seaweed nearly eliminates cow methane emissions

#53

Earlier quoted context omitted.

No, and that's not going to happen soon. But companies can start marketing their products as carbon neutral and selling them at a premium at retailers like Whole Foods.

We're talking about methane not carbon.

Carbon neutral is essentially shorthand for doesn't contribute to climate change. Methane (a) contains carbon and (b) is a much more potent greenhouse gas than CO2.

Re: Scientist discovers particular seaweed nearly eliminates cow methane emissions

#54

Can eating seaweed make human farts smell less offensive?

Methane does not smell. To quote wikipedia:

"At room temperature and standard pressure, methane is a colorless, odorless gas. The familiar smell of natural gas as used in homes is achieved by the addition of an odorant, usually blends containing tert-butylthiol, as a safety measure."

Re: Scientist discovers particular seaweed nearly eliminates cow methane emissions

#55

Earlier quoted context omitted.

The biggest producers are and will always be the mass market stuff, though. Who cares if 1% of beef is produced carbon neutral? It's nice, but it makes no tangible difference. Sadly this method of encouraging better behaviour won't work unless a costco or a mcdonalds, for some insane reason, wants to cut their profit margin and buy more expensive beef.

Like how it would be insane of McDonald's to unilaterally agree to use cage-free eggs?

All eggs used by McDonalds in the UK have to be from free range chickens already?

http://www.mcdonalds.co.uk/ukhome/food-quality/eggs.html#clo...

Re: Scientist discovers particular seaweed nearly eliminates cow methane emissions

#56
post #42

Earlier quoted context omitted.

Your knowledge is all correct (I researched leaving tech to farm seaweed).

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 choice.

http://www.givewell.org/ is a good resource for where to give effectively.

Re: Scientist discovers particular seaweed nearly eliminates cow methane emissions

#57

Can eating seaweed make human farts smell less offensive?

It's not impossible. Seaweeds are rich in prebiotic polysaccharides that could theoretically alter your gut microbiome to something less odoriferous. But it could also have the opposite effect. Understanding of the human microbiome is still primitive, and most attempts to manipulate it aren't much different from hitting electronics when it's not working.

Re: Scientist discovers particular seaweed nearly eliminates cow methane emissions

#58

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.

In Europe a country is fined if it doesn't meet it's targets. The measurement of emissions includes agriculture and is a big problem for some countries. So if they can monitor and prove that this method will reduce emissions then I think they will consider it.

A year ago there was a sad moment when the European Parliament laughingly decided to not limit methane emissions from ruminants: http://www.europarl.europa.eu/ep-live/en/plenary/video?debat...

The relevant part is from 13:58 (Andrieu, Eric) to (including) !4:00 (Eck, Stefan). I'm not sure if there ever existed software that worked on that site, so you probably have to skip to 1:48 in the stream mms://vod.europarl.europa.eu/wmv/nas/nasvod02/vod0910/2015/wm/VODChapter_20151028_12104300_14320200_509dc321150aee25e47-337f.wmv?wmcache=0

It's not like that voting is directly relevant in the legislative process but that's another discussion.

Re: Scientist discovers particular seaweed nearly eliminates cow methane emissions

#59
post #36

Earlier quoted context omitted.

The worst move the environmental movement did is let the environmentally sensitive product be associated with consumption by a rich liberal urban elite. Until someone can fix this and disassociate ecological efficiency from the limousine liberal, these programs are unfortunately going to only be marginal. Minimizing environmental externalities can't be seen as optional. Lots of reasonable things increase cost - such…

Yes agree, just look at canned tuna. How is it acceptable to sell products that kill dolphines? Yet "dophin friendly" is treated as a marketing thing. It is like having a note saying "no kittens strangled" on a bottle of milk. It would be better to require objective ethical discolsure upfront on products. So you have "child labour may have been used" alongside the fat content and ingredients.

These regulatory outcomes are what we get when corporations have regulatory capture.

Re: Scientist discovers particular seaweed nearly eliminates cow methane emissions

#60

If seaweed eliminates methane it likely will affect some gut bacteria more than others. We would not blindly swallow antibiotics affecting what is happening in our gut. There will be side effects one way or another - usually the more effect the more side effect. Seaweed is worth studying and has promise but I'm skeptical when it comes super food claims.

Seaweed has a long history of human consumption without adverse effects, so I don't see why it should do any harm to cows, especially at 2 to 5% of diet.
Post reply on HN