Please analyze the necessity of vigorously developing green and low-carbon economy in China.

① China's natural resources are large and varied, but the per capita resources are small, which is difficult to develop, unreasonable and unscientific, resulting in serious waste and loss. China's insufficient resource reserves pose a serious threat to economic development.

② On the whole, the deterioration trend of ecological environment in China has been initially contained, and some areas have improved, but the environmental situation in China is still quite grim, which is not optimistic.

(3) it is conducive to the implementation of the national policy of protecting the environment and saving resources, and promoting the country's modernization.