Climate change is recognized as a serious global environmental problem with serious consequences for our social and economic infrastructure. The greenhouse gas (GHG) emissions that cause climate change are emitted mainly from burning fossil fuels. In order to affect climate change, GHG emissions must be measured and reduced. A new term “carbon footprint” has been coined, to describe the quantity of CO2 and other greenhouse gas (GHG) emissions emitted directly and indirectly by any individuals, companies, events, products or services. There is a number of standard methodologies for calculating carbon footprint. The basic calculation of carbon footprinting is a quick exercise, but in some other cases, when the organization calculates some indirect emissions or the emissions from particular product, a software for that purpose is available. Calculating a carbon footprint is a useful exercise only as a part of a complete environmental management system
