At present, what is the most environmentally friendly way to deal with a human body after they die?
Soon, I'll start to get my house in order and put together a will, medical directive, and anything else I need to related to dying and death (oh, fun!). I would like to not put a financial burden on whomever takes care of my affairs, but would also like to have some ideas about what to do (or others would do) when my time on earth is up, and after any body parts I can give have been donated.
What funerary/burial methods are most "environmentally friendly?"
I come from a Muslim background, and am fond of simple Muslim burials
(though not practicing myself), where the body is cleaned and enshrouded in a simple cotton or linen cloth. However, I live in the US, and this is generally not allowed without some encasement due to groundwater issues.
I'm not opposed to cremation, as I don't particularly care what happens to my physical body after death. Though I don't have some grand wish about disposing my ashes in a special place. It's sort of all the same to me.
Are there any other options that will not be incredibly expensive (for whomever takes care of my affairs and estate), but pose a lesser burden on the planet?