Pollution can be decreased but not stopped completely. Spreading awareness is the most common step. You yourself can work at an individual level . Car pool to school, work can also help. When you carpool less amount of fuel is burned which leads to less air pollution. Not throwing the garbage in the drainage can help reduce water pollution. since we cannot control the acts of other people around us we can at least control our acts and encourage others to also do so. Individual level is the most important level to any developmental project.