How Meat Contributes to Global Warming

February 2009 | By Nathan Fiala
Scientific American, February 2009

FAO report found that current production levels of meat contribute between 14 and 22 percent of the 36 billion tons of "CO2-equivalent" greenhouse gases the world produces every year.

Half a pound of hamburger for someone's lunch, a patty of meat the size of two decks of cards releases as much greenhouse gas into the atmosphere as driving a 3,000-pound car nearly 10 miles.

Animal Industry contribution to Global Warming

The USA produces and consumes the most beef in the world. This livestock farming brings together the Western regions of the United States specialized in reproduction and the great plains of the Midwest fattening regions where corn and soybeans are produced and where livestock farms called feedlots have been developed. The number of cattle herds in the world is now over one billion. Livestock farming has a disastrous effect on the environment and contributes to global warming more than the transport sector. This activity causes 65% of the hemioxide nitrate emissions, a gas which has 296 times more global warming potential than CO2, mainly because of manure. It also produces 37% methane emissions. Methane has 23 times more global warming potential than CO2. The 9% of carbon dioxide emissions are linked to human activities. But all around the world, the increase in standard of living comes with higher meat and dairy product consumption. World meat production should still increase 64% by 2050, going from 296 to 465 million tons.

1. Where Global Emissions are Coming From? (can change map view by changing the year at the bottom)

2. Livestock damages the environment. It accounts for between 8% and 18% of greenhouse-gas emissions

As CO2 levels climb, millions at risk of nutritional deficiencies (Phys.Org)

Supply of food under threat due to biodiversity loss across the globe: UN report

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