The green gross domestic product (green GDP) is an index of economic growth with the environmental consequences of that growth factored into a country's conventional GDP. Green GDP monetizes the loss of biodiversity, and accounts for costs caused by climate change. Some environmental experts prefer physical indicators (such as "waste per capita" or "carbon dioxide emissions per year"), which may be aggregated to indices such as the "Sustainable Development Index.”
Relation of green GDP and GDP could be explicated as following: Green GDP = GDP - depreciation of fixed assets - resources and environmental costs = NDP-resources and environmental costs. Of which, NDP refers to net domestic product. The formula shows that green GDP is corresponding to NDP not to GDP. In this project, we adopted the total value concept of green GDP corresponding to GDP instead of net value just because GDP is used more commonly than NDP when considering practical application.