Global Warming
01- 1000 years
02- CO2
03- Positive Feedback
04- 1C Increase
05- 2C Increase
06- 3C Increase
07- 4C Increase
08- 5C Increase
09- 6C Increase
10- Accelerated Tectonics
11- Ocean Basins
12- Building Storms
13- Warmer Waters
14- Chile Axis Shift
15- Hell In The Pacific
  Mars
16- Runaway Loops
17- Transition
18- Continuity of Worlds
19- Super Floods
20- Kasei Valles
21- Epicentre
22- Plate Boundaries
   
   
   

10 - Accelerated Tectonics

Sumatran Quake of 2004

 

Global warming also accelerates tectonic activity: earthquakes, volcanoes, landslides. It is not simply a matter of a combustible atmosphere, the land itself would no longer be stable.

The Earth's crust responds to the changing mass of water and ice that weighs on it as it is moved around the planet's surface constantly, but which escalates during periods of global warming. The pressure is considerable: 1 cubic metre of water weighs 1 ton, while the same volume of ice weighs less - 0.9 tons. As ice sheets that had pinned down volcanoes and active fault lines melt away, the Earth's crust bounces back in a process called 'isostatic uplift'. As it does so faults are reactivated and seismic activity increases.

This is well illustrated by the Sumatran Earthquake and ensuing Indian Ocean Tsumani of 2004.

   
  Alan Lambert 2011