date:May 21, 2012
Using emissions data alone, US feedlot production appeared to be relatively carbon-efficient compared with NT non-intensive and organic farms. This is largely because grain-fed cattle produce less methane, and have shorter life spans than grass-fed cattle, stated the reports authors.
However, when allowance is made for carbon sequestration, the UK and US pasture-based systems in the scenario performed better, in net carbon emissions, than the US feedlot.
Maximising carbon efficiency alone to