I have seen loads of books and websites on calculating how to become carbon neutral.
Why is the neutrality of only one element ever called into question? So why not set up a website to calculate your Mendelevium offset.
The questions will be
1. Do you work in the Berkeley Radiation Laboratory?
If yes then stop for a few days.
Actually if we really want to make cash we offer people a "Mendelevium offsetting program" it is like a carbon offsetting program where you buy carbon like a medieval sin indulgence and then some guy in Russia does not cut down a tree he was not going to cut down anyway. But in our version we just wait through a few of the elements 76 minutes half lifes and then declare you offset.