Plastics take a long time to degrade. That’s bad for the environment, if the plastic is thrown away. There are many things that we want that we don’t want to have degrade. So, instead of using plastic for single time uses like forks and baggies, use them for things like bridges – which is what the Welsh and the Scots have done. The extra bit of good news is that the plastic used in this bridge, is also recyclable. Wait a few decades, recycle the plastic, and get a new bridge again.