The meat production industry is so bad for the planet, I find it a little strange we don't hear more about it.
70 percent of all the grains and cereals we grow go to feed livestock, not hungry people. Half our available water supply and 80 percent of the country's agricultural land are used to raise animals for food.
In a groundbreaking 2006 report, the United Nations (U.N.) said that raising animals for food generates more greenhouse gases than all the cars and trucks in the world combined.
The list goes on.
By all means, do drive a Prius and change out your incandescent bulbs, coat your roof with photovoltaic cells, but neither would make as big of a difference as eating a vegetable-based diet.