Burger King has announced it is working on relaxing the impact of beef on the environment. According to the United Nations' Food and Agriculture Organization, which is mentioned in the Burger King press release, livestock is responsible for about 14.5 percent of global greenhouse gas emissions. Cows release methane, which is a greenhouse gas. Burger King has partnered with scientists to develop and test a new diet for cows, that according to initial study results, will reduce up to 33 percent of cows' daily methane emissions during....