Approximately over 200 million tones of non-degradable plastics are manufactured around the world. Inimical to mankind by nature, these plastics turn toxic when discarded carelessly. Plastics dumped into sea are highly toxic and endanger most of the sea species. Because of their toxic nature, lands become highly polluted and grow hazardous. They also increase global warming. The only solution to all these harms lies in using biodegradable plastics. These plastics are fully degradable and prevent the soil from getting polluted. Some of the biodegradable plastics are degradable even in sea water which is a great help for the sea animals. They reduce pollution on land and water. Some of the useful applications of these plastics are carry-out bags, packaging films, trash bags. They can also be used as extrusion coat papers which are used in coated paper cups, trays and others.