permafrost ecosystem
41Mount Kenya — Elevation 5,199 m (17,057 ft) …
42Atlantic Ocean — an ocean bounded by North America and South America in the Western Hemisphere and by Europe and Africa in the Eastern Hemisphere. ab. 31,530,000 sq. mi. (81,663,000 sq. km); with connecting seas ab. 41,000,000 sq. mi. (106,100,000 sq. km);… …
43Climate of Mount Kenya — Mount Kenya National Park Natural history Climate Mountaineering Names list The climate of Mount Kenya has played a critical role in the development of the mountain, influencing the topography and ecology amongst other factors. It has a typical… …
44History of the Earth — For the history of modern humans, see History of the world. Geological time put in a diagram called a geological clock, showing the relative lengths of the eons of the Earth s history The history of the Earth describes the most important events… …
45Peat — is an accumulation of partially decayed vegetation matter. Peat forms in wetlands or peatlands , variously called bogs , moors , muskegs , pocosins , mires , and peat swamp forests . By volume there is about 4 trillion m³ of peat in the world… …
46Churchill, Manitoba — Churchill   Town   Welcome to Churchill sign Nickname(s): Polar Bear Capital of the World …
47Tree line — The tree line or timberline is the edge of the habitat at which trees are capable of growing. Beyond the tree line, they are unable to grow because of inappropriate environmental conditions (usually cold temperatures, insufficient air pressure,… …
48Last Glacial Maximum — The Last Glacial Maximum (LGM) refers to the time of maximum extent of the ice sheets during the last glaciation (the Würm or Wisconsin glaciation), approximately 20,000 years ago. This extreme persisted for several thousand years. At this time,… …
49Boreale Zone — Die Verbreitung der borealen Nadelwälder Die boreale Zone ist eine Ökozone, die nur auf der nördlichen Erdhalbkugel zwischen ungefähr dem 50. und dem 70. Breitengrad vorkommt. Sie ist gekennze …
50Boreomontan — ██ Die Verbreitung der borealen Nadelwälder Die boreale Zone, abgeleitet von lateinisch Borealis und altgriechisch βορέας bedeutend „Nordwind“ oder auch den Windgott Boreas meinend, ist eine Ökozone. Sie kommt nur auf der nördlichen Erdhalbkugel… …
