Modern plastics are a pretty incredible substance, but there are some real issues with plastics. Some may never biodegrade for example. You can find the most deserted and remote island in the south Pacific and the shores will absolutely be littered with plastic substances like bottles, bags, 6 pack holders, boxes, and much more. We are often told that most plastics break down or biodegrade in 100 years, but since plastics have not existed that long, we are not really sure. Now some newer plastics are described as biodegradable, meaning they do break down, but most of these require oxygen. This means that, for example, plastic bags buried in a land fill and not going to break down as they have no oxygen. Obviously one solution, at least a partial solution, is recycling plastics.