Natural events like solar cycles, wildfires, and volcanoes have created dramatic shifts in climate throughout history. Sometimes they even have cultural impact, such as the 'year without a summer' in Europe due to a volcano on the other side of the world, which helped inspire Mary Shelley's "Frankenstein."
Less understood have been underwater events.
A new analysis of bronze-age underwater volcanic eruptions is helping researchers better understand the size, hazards and climate impact of their parent eruptions, which will mean more accurate climate simulations in the future.