How can globalization negatively affect the environment in the united states?

For the answer to the question above, one of the effects of globalization on the U.S. is the rising of massive unemployment because the employers are outsourcing their workforce in the other countries like India. Because the labor cost is cheaper there than in the U.S. We all know that the big companies like to cut their cost. This can also affect the environment of U.S. due to increasing a population. The pollution like air pollution may increase and other pollutions.