Comment Re:And why not? (Score 1) 227
Humanity's power generation is currently negligible compared to the amount of energy injected into Earth's ecosystem by the Sun. However, at current growth rates that will not hold true for long. If the current growth rate of about 2.3% is maintained (which it cannot be), then in about 400 years we will produce as much energy as falls on the Earth from the Sun. By that point in time, the surface temperatures on Earth would have raised by about 50 Celsius, making human habitation close to impossible.