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If the warming exceeds - or thereabouts, there is a significant risk of the entire ice sheet being lost over an estimated 10,000 years, adding up to global sea levels. Warming in the Arctic may affect the stability of the jet stream, and thus the extreme weather events in midlatitude regions, but there is only "low confidence" in that hypothesis.
Massive heat waves across North America were persistent in the 1930s, many mid-Atlantic/Ohio valley states recorded their highest temperatures during July 1934. The longest continuous string of 38 °C (100 °F) or higher temperatures was reached for 101 days in Yuma, Arizona during 1937 and the highest temperatures ever reached in Canada were ...
The most dramatic temperature changes occur in North American climates susceptible to Chinook winds. For example, the largest 2-minute temperature change of 49 °F (27.2 °C) occurred in Spearfish, South Dakota, a rise from −4 to 45 °F (−20.0 to 7.2 °C) [citation needed].
With wildfires and increased warming, scientists say the Arctic’s tundra is now a carbon source. The region had been a carbon sink for thousands of years (NOAA Climate.gov; Arctic Report)
Much of the United States is shivering through brutal cold as most of the rest of the world is feeling unusually warm weather. Wind chills in parts of North Dakota reached minus 70 degrees (minus ...
The list of periods and events in climate history includes some notable climate events known to paleoclimatology. Knowledge of precise climatic events decreases as the record goes further back in time.
Recent warming has driven many terrestrial and freshwater species poleward and towards higher altitudes. [215] For instance, the range of hundreds of North American birds has shifted northward at an average rate of 1.5 km/year over the past 55 years. [216] Higher atmospheric CO 2 levels and an extended growing season have resulted in global ...
Things are heating up at the top of the world about four times faster than the rest of the globe, according to new research on the Arctic, where some of the