Artful Dodger: Is that a reason to stop building more green energy supply systems... no.

At the moment we cannot supply the entire world. But some countries like Iceland have tapped into natural renewable energy.

"Five major geothermal power plants exist in Iceland, which produce approximately 26.2% (2010)[1] of the nation's energy. In addition, geothermal heating meets the heating and hot water requirements of approximately 87% of all buildings in Iceland. Apart from geothermal energy, 73.8% of the nation’s electricity was generated by hydro power, and 0.1% from fossil fuels."

http://en.wikipedia.org/wiki/Geothermal_power_in_Iceland

Is that an isolated example, or just a country willing to use 'free' energy.

"In the meantime, we need to drill, drill, drill"

And when the price goes through the roof, what then? A Mad Max type scenerio!!

"I'll bet good money you use fossil fuels all the time."

..because we are still reliant on power plants built decades ago, and still in the process of building green systems. But there are (I've just read) some suppliers in the UK who invest the profits into more green energy. One supplier states that at the present over 50% of the energy they supply comes from green sources. That is a big difference compared to the big 6 energy companies in the UK, who's reputation at the moment is very bad.

After looking at the differences between them and the big 6.. it looks like a good deal. Even better then the non profit company we currently use.