Jim Thompson:

The ultimate in being environmentally sensitive...

http://tinyurl.com/3xfownu

Actually, I don't dislike the second option. It seems less energy-hungry
and yelds more or less the same results as a zinc coffin.

After all, cremation was invented in places where the soil was too frozen
to be dug or the weather too hot for digging.

Once you're dead, you should try to incommodate the livings at least as
possible.

But, before that....