There are many solution like planting of trees, use of non-conventional fuel and solar energy, which can significantly help to reduce global warming. Planting trees will improve the level of oxygen and will cause decrease in harmful gases as trees intake carbon dioxide as a major component in their food. Non conventional fuel like liquid hydrogen can be used to reduce pollution from heavy industries and transportation. Finally, solar energy has developed as a major source in generating electricity this can be used in many other domains to reduce the impact of air pollution.