On Thu, 07 Feb 2008 18:05:41 +0000, Tim Downie wrote:

Because natural gas can't be liquefied (at room temps & acheivable
pressures)

Darn! Knew there had to be a good reason. ;-)

Actually it can be stored compressed, but it need sto be in the sort of
bottles used for other compressed gases such as oxygen, nitrogen, CO2 etc.
If you've come across these in a welding shop, science lab or hospital etc
you'll know they are firkling *heavy*. However I recall seeing cars fitted
with compressed methane bottles on roofracks in Ancona, Italy, in 1977. It
was some sort of renewable scheme. Evidently didn't catch on.

--
John Stumbles

Pessimists are never disappointed