Except that it's not necessary waste for Russia. At least some of this 'waste' can be used as fuel now or in future.

France does have at least some of necessary technologies to do so too. USA/Finland doesn't.

See https://habr.com/ru/post/473028/ (in Russian) and links from it

That would be politically problematic because of our relations with Russia. Also, the tundra is going to thaw soon.