13. The Year Without a Summer (1816)
The year 1816, known as the “Year Without a Summer,” was marked by severe climate abnormalities that led to widespread crop failures and food shortages across Europe and North America. This global cooling event was primarily caused by the massive eruption of Mount Tambora in Indonesia in April 1815, which released vast amounts of volcanic ash and gases into the atmosphere, blocking sunlight and lowering temperatures. The resulting cold temperatures and unusual weather patterns caused significant agricultural disruptions, leading to famine and economic hardship. For more detailed information, you can refer to the National Oceanic and Atmospheric Administration’s coverage of the Year Without a Summer (climate.gov).



