What's the greenest way to dispose of my dead body? - By Nina Shen Rastogi - Slate Magazine

I would have thought cremation would be the better ecological option by a mile, but I was wrong. There is always some new down the pike though.

"If you can manage to stick around for a while, two new technologies have eco-geeks (not to mention sci-fi fans) excited. The process of alkaline hydrolysis involves liquefying your body in a solution of lye and water, resulting in a pile of bone ash and a bottle of biofluid that you can pour on your houseplants. One of its leading proponents, a Scotland-based company called Resomation Ltd., claims that the procedure has a carbon footprint 18 times smaller than a typical cremator. In the other procedure, called promession, a corpse gets freeze-dried with liquid nitrogen and then shattered into powder, Terminator-style. Neither of these options is commercially available yet, but both the Mayo Clinic and the University of Florida use alkaline hydrolysis to dispose of their teaching cadavers. So, you experimental types—why not turn yourself into the ultimate recycling project and donate your body to science?"