And on the lighter side…
…here’s a website devoted to ways to destroy the earth. As the web creator notes, it’s not quite as easy as you might think:
All the explosives mankind has ever created, nuclear or non-, gathered together and detonated simultaneously, would make a significant crater and wreck the planet’s ecosystem, but barely scratch the surface of the planet. There is evidence that in the past, asteroids have hit the Earth with the explosive yield of five billion Hiroshima bombs – and such evidence is difficult to find.
..bruce..