I heard this on interview on NPR.  It's a great point but I think the message will fail if they ask us to give up meat once a day.  Instead we should focus on eating less meat per meal and utilizing forms of agriculture that can produce protein with reduced environmental impact.  Instead of corn, hogs and beef, perhaps fish culture works better.

mushy peas and catfish.

Of course I meant to say one day per week not once a day.  We wastefully eat meat almost every meal and it kills us. I'm not vegan at all but we 'mericans eat meals that can be described as a "heart attack on a plate"

Unfortunately this will probably fall on deaf ears to active gym goers and people trying to build muscle. Protein is essential for muscle growth and repair and meat is viewed as the most viable source for protein currently.

...but like most good ideas, most people will ignore it.

I know the anti-science peepz here at Grist will freak out again. But the alternative to old school meat from livestock, is meat from the meat-printer.

You can easily produce high quality steaks from stem cells. It solves all problems all at once (at least if you do the effort of thinking it through).

Meat printers are here (google), so it's not some fancy idea.

The only problem I see is animal welfare people becoming jobless. But then, they will soon begin to demand human rights for stem cells, agar, sugar, and perhaps even for electricity - the ingredients needed to make in-vitro meat.

The meat printer will become as ubiquitous as the micro wave oven. You can download meat templates from the internet. Just press "print" and there you are.

I checked Google like Jonas suggested.  There is nothing about a meat printer.  There is no meat printer. You cannot download meat templates.

Scientist have figured out how to structure some tissues but muscle tissue isn't mentioned as far as I can find.  It might work for making new noses
or ears for human replacements.

Sorry Jonas the idea you can EASILY grow your own stem cells doesn't wash.  And the printer will cost as much as your car.  This is typical media hype.

When you can "print meat" cheaper than feeding rabbits leftover garden scraps let me know.

The only problem I see is animal welfare people becoming jobless.

Me thinks that the ranching industry and lobby might be little more peeved 'bout job loss than the animal welfare people would be.

Sorry, but the fact is that no one needs meat for protein.  You can get all the protein you need from plants, and it's healthier, too.  The only reason people need animal products in food is for vitamin B-12, and you only need that maybe once per month.

You science worshipers should stop being such anti-environmental consumers and learn to simplify things.

The claim that cattle produce a significant amount of greenhouse gases is unproven and is a ridiculous reason for refraining from, or reducing, eating meat.  There are many excellent reasons to reduce or eliminate meat consumption -- farm animals are non-natives, free range cattle and sheep turn grasslands into deserts, cattle pollute watersheds, and destroy riparian areas, and ranchers fence formerly wild areas, bring in invasive species to feed the cattle, and kill everything they consider a threat to or competition with their cattle -- but reducing GHG emissions is not one of them.