Fnj2

Internally inconsistent and unsupported assertion

"In 2000[update], the U.S. has proven helium reserves, in such gas well complexes, of about 147 billion standard cubic feet (42 billion SCM). This is enough helium for about 25 years of world use, or 35 years of U.S. use, although factors in saving and processing impact effective reserve numbers.[78][79]"

First of all, there are 35.3 cu ft in 1 m^3, so either the 147 figure or the 42 figure is obviously wrong. Further, neither of the two references given mentions EITHER figure. Neither reference is a primary or authoritative reference, anyway.

Somebody with the time, either fix this or rip it out.

Fnj2 (talk) 06:03, 30 October 2010 (UTC)

Removed the distracting refs 78,79 - you've got to search the last ref (former 80, now 78). Materialscientist (talk) 06:37, 30 October 2010 (UTC)

Did that, and thanks for pointing this out. The exact ref for the 147 billion SCF is [1], see table. The 42 billion SCM is off by an exact factor of 10 due to a math error, and should be 4.2 billion SCM. To get a naive time before it's gone, divide the 4.2 billion SCM US reserves, by 72 million SCM/US use per year (see pie chart) and obtain 58 years. I don't know where the 25 came from. I've fixed the ref. and the conversion. The time to run out is in the ballpark, but may be off by a factor of 2.SBHarris 06:43, 30 October 2010 (UTC)