[Former Proud Canadian]

In the 21st century people forget what is really needed for survival. Without water and food human beings die. It's that simple. Energy allows you to produced more food, move it to cities, and process it. It also allows you to move and purify water.

Countries with poor water resources cannot sustain large populations. China comes to mind.

Fun fact, 20% of the world's fresh water resides in the Great Lakes.

[tacticalogic]

Countries with poor water resources cannot sustain large populations. China comes to mind.

China's "re-unification" with Tibet gave the direct access to the Himilayan glaciers. They'll divert that water for the own population and the fresh water it supplied to surrounding coutries will start to dry up.