Representing Global Boundary Conditions: United Nations Environmental Council |UNEC|, New York

‘Pull a spring, let it go, and it will snap back into shape. Pull it further and yet further and it will go on springing back until, quite suddenly, it won’t. What was once a spring has become a useless piece of curly wire…’. (economist, 2012) The quote above represents what may happen to the Earth if its systems are overstretched. ‘… like those...