CDP, formerly Carbon Disclosure Project, is an international, not-for-profit organization providing the global system for companies, cities, states and regions to measure, disclose, manage and share vital information on their environmental performance. CDP, voted number one climate research provider by investors, works with 827 institutional investors, with assets of $100 trillion, and 89 purchasing organizations, with a combined annual spend of over $2.7 trillion, to motivate companies to disclose their impacts on the environment and natural resources and take action to reduce them.