Or... try Promession:
Coffins are fed in one end [of a machine], and the body removed from the coffin within the unit and then treated with liquid nitrogen.And the whole thing is supposed to become soil fairly quickly.
The body is then vibrated until the body fragments, after which the remains are dried and refined further, and then passed through filters to remove metals, including dental amalgam. The remains are then poured into a square biodegradable coffin, again automatically, for shallow burial.
Here's my question: Isn't old-fashioned burial greener? It's carbon sequestration, right?