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If the Greenland ice sheet melts, sea level could rise by as much 25 feet.Today there are 17 million people living less than one meter above sea level in Bangladesh, while places like Florida and Louisiana in the United States, Bangkok, Calcutta, Dhaka and Manila are also at risk from sea level rise.” This threat of ‘catastrophic sea level rise’ is a mantra constantly repeated by GW alarmists and forms the heart of their demand for urgent drastic action.Initial research on the MWP and the following Little Ice Age (LIA) was largely done in Europe, where the phenomenon was most obvious and clearly documented.The Vikings took advantage of ice-free seas to colonize Greenland and other outlying lands of the far north.Excavations show that there were considerable birch woods with trees up to 4 to 6 meters high in the area around the inner parts of the Tunuliarfik- and Aniaaq-fjords, the central area of the Eastern settlement, and the hills were grown with grass and willow brushes. The Norse soon changed the vegetation by cutting down the trees to use as building material and for heating and by extensive sheep and goat grazing during summer and winter.The climate in Greenland was much warmer during the first centuries of settlement but became increasingly colder in the 14th and 15th centuries with the approaching period of colder weather known as the Little Ice Age."The Medieval Warm Period coincides with the Vikings' settlement of Greenland, Iceland and possibly North America.
The Medieval Warm Period was a time of warm weather around 800-1300 AD, during the European Medieval period.
It has been documented that during this period, American oysters (Crassostrea virginica) and bay scallops (Aequipecten irradiens) formed populations as far north as Sable Island. Radiocarbon dating of relict oyster and bay scallop shells compare reasonably well with the dates of the post-glacial warm period.
From the 16th to the 19th century there was a "Little Ice Age", when the average temperature of the Northern Hemisphere was a degree or two cooler than now.
They traveled by boats to Greenland among other places through seas that, with cooler climates are typically full of dangerous sea ice.
During this time, grape vineyards, which require moderate temperatures and a long growing season, were as far north as England.