Recently, vice premier Wen Jiabao made a special investigation at the China Environmental Science Research Institute. He had an informal discussion with the experts in environmental science and delivered a speech on the work of China's environmental protection. He stressed that the pollution treatment, environmental protection and the practice of good circulation in ecology are related with the social sustainable development. Overall plans must be made. All factors into consideration must be taken. The means of laws, economy, administration and technology must be employed. The work on the environment protection shall be strengthened for insuring the notable improvement of environmental quality...