edgepedia

Paleoclimatology

73 articles

Quaternary Ice Age divisions

The Quaternary Ice Age divisions are the glacial and interglacial subdivisions of the Pleistocene, classically the four Alpine ice ages Günz, Mindel, Riss, and Würm.

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.

Sturtian glaciation

The Sturtian glaciation was a global Snowball Earth glaciation of the Cryogenian Period, from about 717 to 660 million years ago, the longest in Earth history.

Summit Camp

Summit Camp, or Summit Station, is the NSF-funded year-round U.S. research station near the apex of the Greenland Ice Sheet at 3,210 m, established 1989 for the GISP2 ice core, operated by Battelle ARO, distinct from same-named places in Nevada, Idaho, and Pennsylvania.

Timeline of glaciation

The timeline of glaciation, or list of ice ages, covers Earth's five major glacial periods, from the Huronian glaciation 2.4 billion years ago to the ongoing Quaternary.

Toarcian Oceanic Anoxic Event

The Toarcian Oceanic Anoxic Event, also called the Jenkyns Event, was an episode of global warming and ocean deoxygenation about 183 million years ago in the Early Jurassic.

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.

Vostok ice core

The Vostok ice core is a deep ice core drilled at Vostok Station in central East Antarctica, preserving trapped gases and climate records spanning roughly 420,000 years.

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.

Yedoma

Yedoma is ice-rich, silt-dominated permafrost that accumulated in unglaciated northern Siberia, Alaska, and the Yukon during the late Pleistocene, often containing more ice than sediment.

Younger Dryas

The Younger Dryas, also called Greenland Stadial 1, was a cold period from about 12,900 to 11,700 years ago that interrupted the warming after the last ice age.

Younger Dryas impact hypothesis

The Younger Dryas impact hypothesis, also called the Clovis comet hypothesis, proposes a comet or asteroid impact 12,900 years ago triggered sudden cooling and extinctions.