Wouldn't it be cool to be able to just "adopt" a tank of gas from the SPCA or something?
[Devil's Advocate POV]:Hrmm.. we could take it further. Instead of burial sites or standard cremation, bodies could be used for biomass reactors to provide electricity to cities. That means more land could be reclaimed for forests (and cleaner air) and bodies wouldn't just be rotting in the ground but rather returned in a compostable format (ash is often used to help create rich compost material).