with quotes from Agence France Presse
Many scientists believe the raising of meat for human consumption is a major source of green house gases. “That’s because beef is such an incredibly inefficient food to produce and cows release so much harmful methane into the atmosphere,” said Nathan Pelletier of Dalhousie University in Canada.
“Meat once was a luxury in our diet,” Pelletier said. “We used to eat it once a week. Now we eat it every day.”
“Given the projected doubling of (global) meat production by 2050, we’re going to have to cut our emissions by half just to maintain current levels,” Pelletier said.
“Technical improvements are not going to get us there.”
That’s why changing the kinds of food people eat is so important, said Chris Weber, a professor of civil and environmental engineering at Carnegie Mellon University in Pennsylvania.
Food is the third largest contributor to the average US household’s carbon footprint after driving and utilities, and in Europe - where people drive less and have smaller homes - it has an even greater impact.
“Food is of particular importance to a consumer’s impact because it’s a daily choice that is, at least in theory, easy to change,” Weber said.
“You make your choice every day about what to eat, but once you have a house and a car you’re locked into that for a while.”
The average US household contributes about five tons of carbon dioxide a year by driving and about 3.5 tons of equivalent emissions with what they eat, he said.
“Switching to no red meat and no dairy products is the equivalent of (cutting out) 8,100 miles driven in a car … that gets 25 miles to the gallon,” Weber said in an interview following the symposium.
Buying local meat and produce will not have nearly the same effect, he cautioned.
That’s because only five percent of the emissions related to food come from transporting food to market.
“You can have a much bigger impact by shifting just one day a week from meat and dairy to anything else than going local every day of the year,” Weber said.
For more information on how to eat a low carbon diet, visit www.eatlowcarbon.org.