Green GDP is a measure of the economy that recognizes the value of the environment. It is different from the regular GDP, which only looks at economic output such as the buying and selling of goods. Green GDP looks at the value of clean air, clean water, and healthy ecosystems in addition to economic growth. This helps to give a fuller picture of how the economy is doing by measuring the health of the environment along with economic output. It can be used to help countries decide how best to manage their natural resources so that they can make sure their environment is protected now and in the future.