Climate Change - 1816: The "Year Without a Summer" - Volcanic Cooling
The climate can react to sudden shocks. The weather in 1816 was very strange.
Spring arrived, but then everything seemed to turn backward, as cold temperatures returned.
The sky seemed permanently overcast.
The lack of sunlight became so severe that farmers lost their crops. Food shortages were reported in Ireland, France, England, and the United States. 1816 became known as "The Year without a Summer" or "18-hundred-and-frozen-to-death".
It was over 100 years before anyone understood the reason for this weather disaster.