World Car Free Day 2021: This 22nd September is "World Car Free Day". Its purpose is to raise awareness of environmental protection among people, to understand the harm caused by motor vehicles to the urban environment and to encourage people to take public transport, cycle or walk in cities. At present, protecting the environment, advocating for green travel and developing energy-saving and new energy vehicles has become a global consensus. Under the international background of global warming, more and more countries and people are concerned about the destruction of ecological environment, pollution of the environment and control.
