The ecological environment is the basis for human survival and development, and environmental issues are one of the most severe challenges facing humanity in the 21st century. Environmental protection has become the common responsibility of people.

 To prevent the deterioration of the natural environment, the protection of water, sea, and forests is very important. People should save resources and reduce environmental pollution. For example, reducing the use of plastic bags and taking buses as much as possible are things we can do. Because when we shop in the store, we all use plastic bags. These plastic bags become garbage, but they have not disappeared in this world. And cars are still the main source of urban air pollution.

 With global warming, countries around the world are paying more and more attention to building energy efficiency. People are increasingly aware that the carbon dioxide produced by the energy used in buildings is one of the main sources of climate warming. Energy-saving buildings have become a trend, and green buildings have emerged. For example, it saves water, energy, improves the ecological environment, and reduces environmental pollution. Use natural energy and renewable resources, such as solar energy. Use solar energy to provide energy for buildings without pollution and noise. Increase the use of natural light in buildings. Reuse and recycle construction materials, which can reduce construction waste, and reduces the demand for new resources.