I got a real belly laugh out of this true-life account of tundra scientist Sergei Zimov of the Russian Academy of Science station at Cherskii. It ranges over wooly mammoths, permafrost carbon stores, and ... a tank? Yes, indeed. Read for yourself:
Here's another page about Zimov that casually mentioned the tank in the station's list of equiment, and got me curious, leading to the Stanford magazine article above...
Here's the closest thing to a homepage for Zimov's project that I've found:
You just can't make this kind of stuff up. Truth really is stranger than fiction.