Maybe a giant cork would stop a volcano? Global warming is also affecting hurricanes that form on the African coast and make it to the USA. You are talking about worldwide weather patterns, and tornadoes are one of them. Starting from Alsaka, and coming down from the Rockies onto the plains, they make a unique pattern, and form thunder head systems. Pretty hard to stop many forces in nature when they really come alive. Hurricanes, Tornado, Earthquake, Volcano, Fires, Waves, Blizzards, better stand back.