About 40 calories of fossil fuel energy go into every calorie of feed lot beef in the US. One more reason to go Meatless Monday! 26 percent of energy used in homes is for lighting and other appliances It takes 660 gallons of water to produce one hamburger. 20 percent of energy used in homes is for water heating Genetically engineered soybeans, corn and cotton in the US make up 93%, 88% and 94% of