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Op woensdag 20 mei 2015 12:46 schreef xpompompomx het volgende:[..]
Je weet dat Groenland Groenland heet omdat Erik de Rode kolonisten wilde aantrekken he? En dat dat niet was omdat het er nou zo groen is?
Ik kijk wat verder dan 10.000 jaar.
http://en.wikipedia.org/wiki/Greenland#Geography_and_climatequote:
Scientists who probed 2 km (1.2 mi) through a Greenland glacier to recover the oldest plant DNA on record said that the planet was far warmer hundreds of thousands of years ago than is generally believed. DNA of trees, plants, and insects including butterflies and spiders from beneath the southern Greenland glacier was estimated to date to 450,000 to 900,000 years ago, according to the remnants retrieved from this long-vanished boreal forest. That view contrasts sharply with the prevailing one that a lush forest of this kind could not have existed in Greenland any later than 2.4 million years ago. These DNA samples suggest that the temperature probably reached 10 °C (50 °F) in the summer and −17 °C (1.4 °F) in the winter. They also indicate that during the last interglacial period, 130,000–116,000 years ago, when local temperatures were on average 5 °C (9 °F) higher than now, the glaciers on Greenland did not completely melt away.
quote:
Postglacial glacier advances on the peninsula Nugssuaq in West-Greenland
The 1310 m-high Qaqugdluit-mountain-land on the south-side of the peninsula Nugssuaq, situated 50 km W of the Greenland inland ice at 70° 7’50.92"N 51°44’30.52"W, is exemplary of the numerous mountain areas of West-Greenland. Up to the year 1979 (Stage 0) it shows Historical to Holocene, i.e. Postglacial glacier stages dating back at least 7000 and at most c. 10 000 years.[68][69] In 1979 the glacier tongues came to an end – according to the extent and height of the glacier nourishing area – between 660 and 140 m above sea-level. The pertinent climatic glacier- snowline (ELA) ran at c. 800 m in height. The snowline of the oldest (VII) of the three Holocene glacier stages (V – VII) ran c. 230 m deeper, i.e. at c. 570 m in height.[70] The four youngest glacier stages (IV-I) are of a Historical age. They have to be classified as belonging to the global glacier advances in the years 1811 to 1850 and 1880 to 1900 ("Little Ice Age"), 1910 to 1930, 1948 and 1953.[69] Their snowlines rose step by step up to the level of 1979. The current snowline (Stage 0) runs nearly unchanged. During the oldest Postglacial Stage VII an ice-stream-network from valley glaciers joining each other, has completely covered the landscape. Its nourishing areas consisted of high-lying plateau-glaciers and local ice caps. Due to the uplift of the snowline about that c. 230 m – what corresponds to a warming about c. 1.5 °C –, since 1979 there exists a plateau- glaciation with small glacier tongues hanging down on the margins that nearly did not reach the main valley bottoms any more.
Ik lees die 2e quote als 'we zijn nog aan het opwarmen na de kleine ijstijd van 1811', we leven in een vrij land waar je dingen mag zeggen
Als het niet met een hamer te repareren is, is het een elektrisch probleem.