A recent United Nations report titled “Livestock’s Long Shadow” concludes that eating meat is “one of the …most significant contributors to the most serious environmental problems, at every scale from local to global.” In just one example, eating meat causes almost 40 percent more greenhouse-gas emissions than all the cars, trucks, and planes in the world combined. The report concludes that meat industry “should be a major policy focus when dealing with problems of land degradation, climate change and in pollution, water shortage and water pollution, and loss of biodiversity.