On Mon, Oct 12, 2009 at 1:08 PM, Horace Heffner <[email protected]> wrote:

> The article talks about 1.2 trillion barrels equivalent, or 1.2x10^9 bbl.
>  There is 6.1178632 × 10^9 J/bbl, so that is 7.34x10^18 J total in reserve.
>  The world energy demand in 2050 is expected to require about 35 TW, which
> is 3.5x10^10 J/s.  That the reserves at that rate can last (7.34x10^18
> )/(3.5x10^10 J/s. = 2.1x10^8 s = 6.6 years.

That would be 1.2x10^12.

Terry

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