One of the most important inferences of the Lunar Prospector mission data w
as the existence of subsurface water ice in the permanently shadowed crater
s near both lunar poles [Feldman et al., 1998]. We propose and substantiate
an alternative explanation that hydrogen can exist in the shallow lunar su
bsurface in the form of clathrate hydrates: CH4 . 6H(2)O and/or CO2 . 6H(2)
O.