What's not to be sure of Leahbeatle? The first graph is
showing 17 year old data but approximates the 20% 50% split I stated, not the one PETA stated. The Data Limitations section I referred to
clearly states and I quote
Data Limitations
Nil known.
Issues for which this is an indicator and why
Atmosphere — Climate variability and change - Greenhouse
The agricultural sector accounts for around 19 percent of Australia’s net emissions and therefore, is one of the major drivers in our level of net greenhouse emissions. Emissions from the agriculture sector is a direct indicator for this issue.
Looks like "about 20%" to me.
As far as applicability, Australian society is essentially the same as the U.S. in my view, on a smaller scale. They are a modern industrialist state where they eat meat aren't they? They drive cars and work in big cities, etc. don't they?
I will find the U.S. data but the I suspect they will show a similar split. They are not that different from us.