The document introduces the author, Danielle Victoria anak Egong, a 14-year-old student from Sarawak, Malaysia. It discusses what it means to be a global citizen and the responsibility to avoid environmental degradation. It then explains the importance of air for human breathing and plant photosynthesis. The document also defines air pollution as contamination from human activities that can harm the natural environment. Some key pollutants are identified such as smoke, vehicle fumes, and factory emissions. Ways to reduce global warming through actions like planting trees, reducing toxic chemicals, and practicing the 3Rs are suggested. The document concludes by emphasizing factors that cause air pollution and their effects, and calling for actions like not smoking and carpooling