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Time to Go Green on Energy (November 23, 2006)

Terry Hung

Novemer 23, 2006

There are limited fossil fuel left on earth.  Methane is not the answer either. A few points:
1. Global warming effect and air pollution: According to en.wikipedia.org/wiki/Methane , "Methane in the earth's atmosphere is an important greenhouse gas with a Global warming potential of 23 over a 100 year period. Its concentation has increased by about 150% since
1750 and it accounts for 20% of the total radiative forcing from all of the long-lived and globally mixed greenhouse gases." Coal is even worse."

2. Cost: we extracted the fossil fuels from the surface of the earth first. The deeper we dig, the more expensive they become. En.wikipedia.org/wiki/Fossil_fuel reasons that "The principle of supply and demand suggests that as hydrocarbon supplies diminish, prices will
rise. Therefore higher prices will lead to increased alternative, renewable energy supplies as previously uneconomic sources become sufficiently economical to exploit."

3. Levels and flows: the en.wikipedia.org/wiki/Fossil_fuel estimated
the remaining fossil fuels below:

    * Oil: 1,277,702/77/365= 32 years
    * Gas: 1,239,000/47/365= 72 years
    * Coal: 4,786,000/52/365= 252 years

Even if we spent excessive level of cost to dig them out, there is not much left.

It's time to go green on energy.

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