hmmmm.... Not sure about that first graph, but taking a pretty close look at the Australian government's Dept. of the Environment and Water Resources report, it appears to me that both PETA and you are wrong. To pick a random year from the chart (2003), the total "Carbon dioxide equivalent emissions from the agricultural sector" appear to be about 90 Mt CO2-e. Then if you scroll down the page to the chart on "Carbon dioxide equivalent emissions by mode of travel and road travel" and look at the data for that industry, I notice that the net Domestic Transport Emissions by Mode, when you add all the modes together, comes out to 80 Mt CO2-e.

http://www.environment.gov.au/soe/20...385/index.html

That's not 20%:50% in either direction--- that's practically one-to-one! Looking back to 1990 the transportation figure is at 62 Mt, which might make it 2/3rds that of the agricultural mark, still around 90 Mt, but still not really close to 20%:50%

However-- these are domestic Australian statistics!!! Hard to refute PETA statistics with such a narrow focus. I'm not saying you're necessarily wrong, abowles, just that your cites haven't proved what you're saying.