Environmentalists and climate warriors have long targeted agriculture, particularly intensive animal agriculture, as a prime source of greenhouse gases and global warming. And as the largest agricultural producer, the U.S. has been the bullseye of their target. It is estimated that agriculture produces about 9 percent of U.S. greenhouse gases with a third of that coming from the gas, which contains methane, passed by cattle. The cattle business and feedlots have been singled out by environmentalists as an important source of climate change. They argue that if cattle production (with its flatulence) could be eliminated in the U.S. and in other countries where it is a major sector, this would have a greater beneficial impact than the Paris Cl...