Connie, a friend from high school, posted this on Facebook about planting seeds in your own biodegradable urn. If you've ever visited an old cemetery with a lot of trees, you see nature has already taken care of this--just a little longer span of time.
In the United States, which contains 8 percent of the world's forests, there are more trees than there were 100 years ago. That's a lot of coming and going. Trees store CO2, produce oxygen, remove toxins from the air, and create habitat for animals, insects and more basic forms of life.
My high school class of MMHS 1957 has donated several trees to the town campus to replace those that have died or been lost to storms, but even in Mt. Morris, there are far more trees than when the town was founded. The “reforestation” of the former Mt. Morris College campus effort was largely led by Lynne Fleming Wilburn and other local class members, who also tended our first tree in its very young years. (Source)