A ​single cow, bull, or steer produces more CO2 per year than a Ferrari​

Livestock supply chains emitted an estimated total of 7.1 million tonnes CO2
Livestock supply chains emitted an estimated total of 7.1 million tonnes CO2-eq in 2005. This represents 14.5 percent of all human induced GHG emissions (IPCC, 2007). Methane (CH4) accounts for about 44 percent of the total. Nitrous oxide (N2O) and carbon dioxide (CO2) represent almost equal shares with 29 and 27 percent, respectively.

Cattle are the main contributor to the sector's emissions with about 4.6 million tonnes CO2
Cattle are the main contributor to the sector's emissions with about 4.6 million tonnes CO2-eq, which represents about 65 percent of sector's emissions. Beef and dairy cattle generate similar amounts of greenhouse gases. Pigs, poultry, buffaloes and small ruminants have much lower emissions, representing between 7 and 10 percent of sector's emissions.

Beef meat is the commodity with highest emission intensity, with an average of 342 kg CO2
Beef meat is the commodity with highest emission intensity, with an average of 342 kg CO2-eq per kg of protein. Meat and milk from small ruminants present the second and third highest emission intensities among commodities with averages of 165 and 112 kg CO2-eq per kg of protein. Cattle milk, chicken meat and eggs and pork have lower emission intensities, all below 100 kg CO2-eq per kg of protein

Feed production accounts for almost 47 percent of total sector's emissions
Feed production accounts for almost 47 percent of total sector's emissions, with over 3.3 million tonnes CO2-eq. Enteric fermentation is the second largest source of emissions, with 2.7 million tonnes CO2-eq or about 40 percent of total emissions. Manure management is responsible for about 10 percent of the total, or 0.7 million tonnes CO2-eq. Energy consumption, both on-farm and postfarm, account for 0.3 million tonnes CO2-eq, or nearly 5 percent of the total.

 Latin America and the Caribbean have the highest level of emissions, with 1.7 million CO2
 Latin America and the Caribbean have the highest level of emissions, with 1.7 million CO2-eq.

East and Southeast Asia, with about 14 million tonnes of protein
East and Southeast Asia, with about 14 million tonnes of protein, is the region with the highest production

Via fao.org
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Alex E

Ecoclimax is defined by Odum (1969) as the culmination state after a succession in a stabilized ecosystem in which maximum biomass (or high information content) and symbiotic function among organisms is kept per unit of available energy flow.