Charles Brooke breaks down global ruminant emissions between grazing and feedlot systems.
Assertion Partly supported
Brooke: US agricultural methane emissions exceed all fossil fuel methane combined
“Between interior fermentation and manure management in the U.S., that's more methane than our natural gas systems, petroleum systems, and coal mining combined.”
Prediction Open · timeframe Dec 2050
Brooke: Global livestock emissions are projected to increase 46% by 2050
“And we're expecting animal protein consumption to increase about, by about 20% by mid-century, about twenty-fifty. And that's going to result in an increase in emissions from livestock production by about 46%.”
Assertion Supported
Brooke: Efficiency improvements can abate 20% of projected livestock emissions growth
“The projections are about 20%. We can debate about 20% of the emissions that were expected to increase By this improvement in efficiency. It's actually one of the largest sectors of, ah, marginal abatement that we, that we've modeled.”
Assertion Supported
Brooke: The 3-NOP feed additive consistently delivers a 30% methane reduction
“Generally, three NOP can deliver, and it has very consistently delivered, an average of about 30% reduction, absolutely, across the board.”
Assertion Supported
Brooke: Bromoform cuts methane up to 90% in beef cattle on feedlots
“We see that in beef cattle, So on a ration like a beef, beef feedlot ration, high grain, up to 90% reduction, massive reductions, but those animals are also producing less methane already, whereas in a dairy setting, that same compound is maybe going to achiev…”
Assertion Supported
Brooke: Selective cattle breeding can reduce methane emissions by 20-30%
“We find that there are low methane and high methane phenotypes, and we can, it's heritably tractable. We can breed for low methane phenotypes, and this could be 20 to 30% reductions while we maintain the same efficiency in, you know, in these high efficiency g…”