Pods in the ground are a new way to be buried, but with more trees.
http://tomeoftrovius.com/2018/04/02/alternative-afterlives-3-capsula-mundi/
Capsula Mundi
https://www.patreon.com/posts/17923599
https://www.makersupport.com/post/5ac221c7470f930ca570b1b5