Green Hype

We have heard a lot of news lately about large companies making strides to be a part of the green movement. Companies like Wal-Mart, British Petroleum, and UPS are making headlines left and right for their efforts to make their businesses more green. Many of these companies are developing and marketing new green products and going above and beyond to show their green side to consumers. Are these large companies genuinely concerned about the environment and the future of our earth, or are they simply leveraging green publicity to make more money?