Green IT metrics and measurements will play a pivotal role in reducing the carbon footprint of businesses. Reduction in carbon emissions, which happens to be a company's environmental responsibility, is undertaken for multiple and wide-ranging reasons. ¹ For example, one organization might engage in reductions as a part of being a good corporate citizen; another might want to incorporate its green credentials in its marketing effort. Brian highlights similar reasons for green initiatives in his article in this issue of CBR.