Greenhouse and icehouse Earth

Opposing climate states on Earth "Climate state" redirects here. For the different levels of climate due to climate change, see Equilibrium climate sensitivity. Timeline of the five known great glaciations, shown in blue. The periods in between depict greenhouse conditions.

Throughout Earth's climate history (Paleoclimate) its climate has fluctuated between two primary states: Greenhouse and Icehouse Earth. These two climate states last for millions of years and should not be confused with glacial and interglacial periods, which occur as alternate phases within an Icehouse period, and tend to last less than 1 million years. There are five known Icehouse periods in Earth's climate history; known as the Huronian, Cryogenian, Andean-Saharan, Late Paleozoic, and Late Cenozoic glaciations. The main factors involved in changes of the paleoclimate are believed to be the concentration of atmospheric carbon dioxide (CO
2), changes in the Earth's orbit, long term changes in the solar constant, and oceanic and orogenic changes due to tectonic plate dynamics. Greenhouse and Icehouse periods have played key roles in the evolution of life on earth by directly and indirectly forcing biotic adaptation and turnover at various spatial scales across time.

Contents

Greenhouse Earth

Overview of greenhouse Earth

A "greenhouse Earth" is a period in which there are no continental glaciers whatsoever on the planet. Additionally, the levels of carbon dioxide and other ...read more

Runaway greenhouse effect
2 months ago

Runaway greenhouse effect ... of a runaway greenhouse effect Tipping points in the climate system Greenhouse and icehouse Earth Kaltenegger, Lisa (2015). "Greenhouse Effect". In Gargaud...

Glacial period
3 months ago

Glacial period ... time scale Glacial history of Minnesota Glacier Greenhouse and Icehouse Earth Ice age Interglacial and Interstadial periods Last Glacial Maximum Last Glacial...

Snowball Earth
3 months ago

Snowball Earth ... The Snowball Earth hypothesis proposes that during one or more of Earth's icehouse climates, Earth's surface became entirely or nearly entirely frozen...

Greenhouse (disambiguation)
3 months ago

Greenhouse (disambiguation) ... when 'greenhouse gases' cloud the atmosphere Greenhouse and icehouse Earth, periods when the greenhouse effect is dominant or absent Greenhouse effect...

Late Paleozoic icehouse
2 months ago

Late Paleozoic icehouse ... The late Paleozoic icehouse, formerly known as the Karoo ice age, was between 360–260 million years ago (Mya) during which large land-based ice-sheets...

Eocene
3 months ago

Eocene ... present on Earth with a smaller difference in temperature from the equator to the poles. Following the maximum was a descent into an icehouse climate from...

Tipping points in the climate system
2 months ago

Tipping points in the climate system ... Human system, Impact, Irreversibility, and Natural Systems." Climate change feedback Greenhouse and icehouse Earth Climate sensitivity Planetary boundaries...

Interglacial
3 months ago

Interglacial ... period until the Little Ice Age (1250–1850). Greenhouse and icehouse Earth Milankovitch cycles Snowball Earth Interstadial periods Last glacial maximum Timeline...

Stadial
2 months ago

Stadial ... the Oerel, the Glinde, the Hengelo, or the Denekamp. Greenhouse and Icehouse Earth Snowball earth Milankovitch cycles Interglacial Cronin, Thomas M. (1999)...

Ice age
1 day ago

Ice age ... climate alternates between ice ages and greenhouse periods, during which there are no glaciers on the planet. Earth is currently in the Quaternary glaciation...

Azolla event
2 months ago
Supercontinent cycle
2 months ago
Flood (Baxter novel)
2 months ago
Joseph Kirschvink
3 months ago
Index of climate change articles
2 months ago
American Megafauna
3 months ago
Late Cenozoic Ice Age
2 months ago
Anoxic event
3 months ago
Ordovician–Silurian extinction events
3 months ago
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