NEW YORK: Scientists from Germany have proven that the United States and Europe are going to have longer heat waves in 2015 that the summer winds that carry cool breeze have weakened because of climate changes. Scientists from the Climate Impact Research Potsdam Institute have revealed in a study that is published on March 12 that the Arctic warming obviously disrupts the air stream that substantially decrease the summer storms.
“When the great air streams in the sky above us get disturbed by climate change, this can have severe effects on the ground. While you might expect reduced storm activity to be something good, it turns out that this reduction leads to a greater persistence of weather systems in the Northern hemisphere mid-latitudes. In summer, storms transport moist and cool air from the oceans to the continents bringing relief after periods of oppressive heat. Slack periods, in contrast, make warm weather conditions endure, resulting in the buildup of heat and drought,” said lead-author Dim Coumou, of the Potsdam Institute for Climate Impact Research in a statement.
“Unabated climate change will probably further weaken summer circulation patterns which could thus aggravate the risk of heat waves. Remarkably, climate simulations for the next decades, the CMIP5, show the same link that we found in observations. So the warm temperature extremes we’ve experienced in recent years might be just a beginning,” said co-author Jascha Lehmann.
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