The development of electric bicycles in Shanghai

摘要

The exhaust gas and noise of Fuel-using motors are becoming the greatest social hazard of pollution in high-populated areas of the world. The voices for "Protecting human beings, protecting the earth" are stronger and stronger and promote the adoption of social tough measures -laws and regulations. In 1992, the first international conference on strategy of protecting global environment and sustainable development has been held, On the conference, "Pronunciamento of the earth-Manifesto of Ris de Janeiro" was proclaimed. With the increasing awareness of the importance of the environment, governments of all countries have paid more attention to protecting it and to saving resources.