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An illustration of ice age Earth at its glacial maximum. A "greenhouse Earth" is a period during which no continental glaciers exist anywhere on the planet. [6] Additionally, the levels of carbon dioxide and other greenhouse gases (such as water vapor and methane) are high, and sea surface temperatures (SSTs) range from 28 °C (82.4 °F) in the tropics to 0 °C (32 °F) in the polar regions. [7]
Glacier retreat is the withdrawal of glaciers from their previous positions due to climate change. It affects the global water cycle, sea level rise and biodiversity. Learn about the causes, measurement techniques, impacts and projections of glacier retreat.
Lonnie Thompson is a professor at Ohio State University and a leading expert on ice core drilling and analysis. He has conducted over 60 expeditions in 16 countries to study glaciers and climate change, and received many awards and honors for his work.
The Quaternary glaciation, also known as the Pleistocene glaciation, is an ongoing series of glacial and interglacial periods that began 2.58 Ma. Learn about the causes, effects, and evidence of this ice age, as well as its relation to Earth's orbit and climate cycles.
CLIMAP has been a cornerstone of paleoclimate research and remains the most used sea surface temperature reconstruction of the global ocean during the last glacial maximum (Yin and Battisti 2001), but it has also been persistently controversial. CLIMAP resulted in estimates of global cooling of only 3.0 ± 0.6 °C relative to the modern day ...
The 250 km 2 (97 sq mi) ice formation, 30 km (19 mi) in length, is one of 48 glaciers fed by the Southern Patagonian Ice Field located in the Andes system shared with Chile which has a small part of the origins of the glacier. [1] [2] This ice field is the world's third largest reserve of fresh water.
The Last Glacial Maximum (LGM) was the most recent time when ice sheets were at their greatest extent 26,000 and 20,000 years ago. The LGM caused a major drop in sea levels, a global cooling of 6 °C, and a dramatic change in vegetation and climate.
Location: Cascade, Montana: Coordinates: 1]: Lake type: Glacial lake (): Primary inflows: Laurentide Ice Sheet: Primary outflows: Along the face of the Ice sheet.: Basin countries: United States: Max. length: about 26 miles (42 km): Max. width: about 7.8 miles (12.6 km): Surface area: varied: Surface elevation: 3,500 m (11,500 ft): References: [2]: Lake Great Falls was a prehistoric proglacial ...