In general I’m bullish on biotech but best case for tissue culture meat still leaves me sceptical. Most of the hype focuses around beef substitutes, beef cattle is about as inefficient as animal agriculture gets at ~3% efficient on an energy basis of edible parts. Dairy jerseys and laying hens are both ~12%, with meat chickens ~15%. The best replicating eukaryotic cell culture I know are certain yeast at 50%. So a be…
> Even there an argument could be made that humane husbandry is positive-utility rather than the neutral of lab-grown, while also coming out ahead environmentally. Can that be true? Animals from U.S. factory farms generate >1 million tons of manure per day (open-air lagoons of animal waste are a special treat) and are responsible for an impressive percentage of methane emissions.
Factory farms probably don't count as "humane husbandry".
I've heard of desertifying areas in the Sahel being made greener again by having goats graze there periodically.