Ron Charles: Most of the unnatural disasters and monsters in your guide [How to Survive a Sharknado and Other Unnatural Disasters] were “first observed” in the last three or four years. Why is the earth becoming so dangerous lately?

Andrew Shaffer: From genetic engineering to exploratory drilling, we’re messing with Mother Nature at an unprecedented pace. The “unnatural disasters” in the book can be read as cautionary tales. Can you draw a straight line between the way we treat the planet and threats like sharknados? Probably not. But you’d have to be a fool not to see that everything on Earth is interconnected.

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