madman101 Nov 13, 2017 20:40
russiagate / russian collusion, geological - methane / in space, geological - earth changes, geological - pingo's, regions - siberia, environ - climate change/ global warming, tunguska event / explosion, all * climate change, space - comets / meteors, countries - russia / ussr, history - 1908, geological - tunguska event, geological - booms and trumpets, environ - arctic permafrost