Wednesday 12 September 2012

Limits to growth

Our pressing problem is how to escape recession and restore growth. Our prime minister and chancellor have some wheezes, such as the temporary relaxation of planning rules on house extensions, but there may be problems ahead if they are too successful.
—Earth surface temperature given steady 2.3% energy growth, assuming some source other than sunlight is employed to provide our energy needs and that its use transpires on the surface of the planet. Even a dream source like fusion makes for unbearable conditions in a few hundred years if growth continues. Note that the vertical scale is logarithmic.