Even biodegradable waste like household can garbage can become hazardous in a garba landfill. As it breaks down, it will produce methane, which slowly makes its way into the air contributing to global warming. In fact, landfills are one of the largest man-made sources of methane in the world. These are just some of the interrelated causes and effects of pollution. We are facing a crisis on a global scale with an overwhelming number of issues. How can we deal with such a difficult problem? Technology offers us some answers. In recent years, scientists have been developing innovative ways of preventing or reducing pollution. Among the most notable of these is "green power," an alternative form of energy that is made from renewable resources like the sun, wind and water. It also produces fewer pollutants and is therefore far less harmful to the environment than the use of fossil fuels. The sun is a powerful source of energy that human beings have always relied on for natural light and warmth. With the help of modern technology, it is now possible to capture the sun's energy and change it inti electricity.