The opening of a particle accelerator at Brookhaven National Laboratory in 2000 inspired fears that high-speed collisions might launch a chain reaction that could turn the earth into a hyperdense sphere about one hundred meters across. A risk calculation determined this to be unlikely; if the collider were to run for ten years, the chance was no greater than 1 in 50 million. “The word unlikely, however many times it is repeated,” wrote concerned scientists, “just isn’t enough to assuage our fears of this total disaster.”

The first mass extinction on earth occurred around 2.5 billion years ago, when a photosynthesizing bacterium appeared and released so much oxygen into the atmosphere that anaerobic life was largely wiped out. This is often called the Great Oxygenation Event, the Oxygen Catastrophe, or the Oxygen Holocaust. 

When Albert Einstein visited Beno Gutenberg, a seismologist at Caltech, in 1933, the two strolled around the Pasadena campus while Gutenberg explained earthquake science. Suddenly their wives arrived to inform them there had been a massive earthquake. “We had become so involved in seismology,” recalled Gutenberg later, “that we hadn’t noticed.”

A scientific study found that hurricanes given feminine names tend to be deadlier than those given masculine names; people consider them less risky and take inadequate precautions. “Changing a severe hurricane’s name from Charley to Eloise,” the study notes, “could nearly triple its death toll.”

Sixteenth-century “father of mineralogy” Georgius Agricola critiqued “these attacks, which are so annoying,” made by those protesting how mining exterminated animals and poisoned brooks and streams. “With the metals that are melted from the ore,” he explained, “birds without number, edible beasts, and fish can be purchased elsewhere and brought to these mountainous regions.”