Does eating meat affect our natural environment?

When land is used to raise animals instead of crops, precious water and soil are lost, trees are cut down to make land for grazing or factory-farm sheds, and untreated animal waste pollutes rivers and streams. In fact, it has such a devastating effect on all aspects of our environment that the Union of Concerned Scientists lists meat-eating as the second-biggest environmental hazard facing the Earth. (Number one is fossil-fuel vehicles.)

And according to a report published by the Worldwatch Institute, a staggering 51 percent or more of global greenhouse-gas emissions are caused by animal agriculture. There are various of reason why people need to be productive to abstain from meat deficiency.