Apparently, when you are buried after you die (hopefully), the usual process of being buried in a coffin etc. is remarkably unfriendly to the environment. Enter the Natural Death Centre. They aim to "support those dying at home and their carers, and to help people arrange inexpensive, family-organised, and environmentally-friendly funerals", and also have the general aim of "helping to improve the quality of dying".
As for me, I hope they just stick me in the soil when I'm done. I'm not fussy about the color of the coffin. If whoever is burying me feels inclined to spend more money, I'd rather they give it to a worthy charity.