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From the Daily Telegraph in Sydney, Australia: A kilogram [2.2 pounds] of beef causes more greenhouse-gas and other pollution than driving for three hours while leaving all the lights on back home, according to a Japanese study. A team led by Akifumi Ogino of the National Institute of Livestock and Grassland Science in Tsukuba, calculated the environmental cost of raising cattle through conventional farming, slaughtering the animal and distributing the meat, New Scientist reports in next Saturday's issue. Producing a kilo of beef causes the equivalent of 36.4 kilos in carbon dioxide (CO2), the principal greenhouse gas, Ogino found. Most of these greenhouse-gas emissions take the form of methane, released from the cow's digestive system. That one kilo of beef also requires energy equivalent to lighting a 100-watt bulb for nearly 20 days. The energy is needed to produce and transport the animals' feed.