What is the biggest change in the environment in recent history that you know of

Question: What is the biggest change in the environment in recent history that you know of
- Keywords:
  change,
  environment
Asked by BBV to Sophie on 15 Mar 2018.
- Sophie Williams answered on 15 Mar 2018:
  
  Probably the rate of the melting of glaciers and rising of sea levels its happening really fast now!

Question: What is the biggest change in the environment in recent history that you know of