Another innovative idea, instead of a funeral, or cremation, there is growing interest in composting people.
Sounds crazy right, except, that is what people did for literally ever until someone found a way to make lots of money off people dying.
I understand that just planting a body in your backyard is both illegal and unsanitary and can spread disease. BUT...
Compositing results in perfectly safe residue and has a far lower carbon footprint than either burial or cremation. Give it a read, I like it.
now you can compost human bodies too