According to this piece found on the British Dental Association website, in the UK, we throw away around 200 million plastic toothbrushes every year.  That is a huge number and worryingly, as it takes 400 years for each to compost, that means the already enormous landfill just keeps on getting bigger and more poisonous gasses pollute the air that we breathe.  It’s not just humans that suffer, it’s animals, birds,...