Yeah, it's true. And I personally hate the thought of my bones sitting in a box in the ground.
I really like the thought of the "sky burial"[1]. Basically, they bring your remains to the top of a mountain and wait for vultures to clean off the bones. Then the bones are crushed into a powder and mixed with something called tsampa for the crows and other birds to eat afterwards. It seems like a safe way to dispose of remains, is spiritually significant (to me), and is actually useful to the ecosystem. Unfortunately, it's very costly on time.