A growing number of corporations have initiated programs in recent months to reduce their carbon footprints through the reduction and offsetting of green house gas emissions. In many cases these initiatives have been motivated by a legitimate desire to minimize the negative impact of corporations on the environment. More recently, the rise in awareness by consumers of the magnitude of the impact of GHGs on global warming has meant that corporate involvement in GHG reduction is not longer merely a moral or ethical obligation but a necessary competitive advantage.