Good job bringing this to light. People won't realise how huge
the problem is and municipalities are woefully ill equipped
to... Agreed; mining can never be sustainable, but then how do
you get the metals to make all the things you need in the course
of... Very good piece. The ocean covered about half the surface
area of other continents seventy million years ago. However,
Australia managed to stay dry. How did it happen? Geophysicist
Michael Gurnis of the California Institute of Technology in
Pasadena, USA, may have the answer. During this period,
Australia was 250 metres higher than it is today. Gurnis
developed a computer model of the movement of tectonic plates
and the heat flow in the underlying mantle. He investigated a
heavy ocean crust that was dipping beneath eastern Australia
about 130 million years ago. His model showed that when this
process came to a halt, the country moved over the cold sinking
slab that had initially pulled it down. This assumption answers
why over half the continent was floode