Earth's climate history, including past ice ages and major climate shifts, presented neutrally and conceptually, one fact per card.
29 cards · basic cards · AI-written, checked twice. Edit anything.
- When did the last ice age end?
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Approximately 11,700 years ago- How long did the most recent glacial period last?
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About 100,000 years- What astronomical cycles influence ice age timing?
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Earth's orbital eccentricity, axial tilt, and precession- How many major ice ages occurred during the Pleistocene?
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At least four- What is the warm interval between two ice ages called?
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An interglacial- How much colder was the peak of the last ice age than today?
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About 4 to 7 degrees Celsius colder on average- How much lower were ocean sea levels during the last glacial maximum?
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Approximately 120 meters lower- What geographic regions were covered by ice sheets 20,000 years ago?
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Canada, northern Europe, and high-latitude areas extending to about 40 degrees north- What was the Younger Dryas?
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A sudden cold period lasting roughly 1,200 years immediately after the last ice age- When was the Holocene Thermal Maximum?
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Between 9,000 and 5,000 years ago- What time period does the Medieval Warm Period cover?
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Approximately 900 to 1300 CE- When did the Little Ice Age occur?
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Approximately 1300 to 1850 CE- What is the Paleocene-Eocene Thermal Maximum?
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A rapid global warming event that occurred about 56 million years ago- What does the Snowball Earth hypothesis propose?
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That Earth's surface was covered almost entirely by ice and snow multiple times during the Proterozoic Eon- What was the global climate like during the Cretaceous Period?
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Warm with no permanent ice at the poles and tropical-like conditions at high latitudes
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