GreenTourism is a certification program founded in 1997 to encourage sustainable practices in the tourism industry. It has certified over 12,000 UK businesses, including 5000 award winners. Certified businesses have collectively saved 700,000 cubic meters of water and are on track to save 1 million tons of carbon by 2018. The document outlines GreenTourism's carbon footprint benchmarks and carbon calculator tool to help businesses track and reduce their environmental impact. It also provides case studies of certified businesses that have improved their sustainability performance and reduced carbon emissions.