Johnstown: America's Deadliest Flood

In 1971, meteorologist Tetsuya Fujita created the Fujita Scale, which allowed scientists to categorize tornadoes, aiding in predictive weather patterns. Fujita revolutionized the understanding of thunderstorms, tornadoes, hurricanes and typhoons.

Rachel Louise Carson was an author and marine biologist who wrote the book Silent Spring, which sparked the modern environmentalist movement by calling out the pesticide and chemical industry.

At first, hurricanes were given only women’s names—until some women protested and got storms named after men, too.

The Atacama Desert is considered the driest place on Earth. Since human records of the area began, some places have never received rain.