10 articles
4.2 kiloyear event
The 4.2 kiloyear event was an abrupt episode of aridification around 2200 BCE that brought decades-long drought from the Eastern Mediterranean and Mesopotamia to India, and defines the Meghalayan Age.
8.2 kiloyear event
The 8.2 kiloyear event was an abrupt cooling of the Northern Hemisphere about 8,200 years ago, triggered when the drainage of glacial Lake Agassiz-Ojibway slowed the Atlantic overturning circulation.
African humid period
The African humid period, also called the Green Sahara, was a wet interval from about 14,800 to 5,500 years ago when the Sahara supported grasslands and lakes.
Bølling–Allerød interstadial
The Bølling–Allerød interstadial was a warm interval of the last deglaciation, beginning about 14,700 years ago and ending with the cold Younger Dryas about 12,900 years ago.
Little Ice Age
The Little Ice Age, also called the mini ice age, was a period of cooler climate from about 1300 to 1850, when glaciers advanced and the coldest decades came in the 17th century.
Older Dryas
The Older Dryas was a brief cold stadial about 14,000 years ago that interrupted the Bølling–Allerød warming at the end of the last ice age, named for Dryas octopetala leaves in Scandinavian lake clays.
Roman Warm Period
The Roman Warm Period, also called the Roman Climate Optimum, was a warm, wet, stable Mediterranean climate phase from about 200 BCE to 150 CE.
Volcanic winter
A volcanic winter is a period of global surface cooling caused by an explosive eruption injecting sulfur dioxide into the stratosphere, typically lasting two to three years.
Volcanic winter of 536
The volcanic winter of 536 was the severe dimming and cooling of the Northern Hemisphere after a major volcanic eruption, the coldest episode in the last two millennia.
Year Without a Summer
The Year Without a Summer, also called Poverty Year, was the cold, wet summer of 1816 in Europe and North America, caused by Mount Tambora's 1815 eruption.