Young Scientist Alert!
Our buddies at Worldchanging have a problem. Antarctic explorer Ben Saunders is going south in October, and they want it to be a green expedition (do we need different words for Antarctica? no soot, no residue, lets call it a white expedition.) Current practice for making drinking water involves burning lots of white gas to melt snow, and most of the suggestions lean to solar collectors and evacuated tubes (glass and pretty fragile). This treehugger's suggestion of a couple of pounds of metallic sodium to be tossed into the snow to make lovely explosions and puddles of water was not well received. Do you have any better ideas? read ::Worldchanging by [LA]