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Surprising insights into climate change

The tropopause, the shifting layer between the troposphere and stratosphere, has increased by about 200 meters over the past two decades, primarily due to greenhouse gases and ozone

Climate researchers from the USA, Germany and Great Britain present model calculations in Science that shed new light on the climatic changes caused by the earth’s inhabitants. Whereas previously the focus was on the temperature rise on Earth or in the stratosphere, scientists are now looking at the tropopause as a marker for unpredictable climatic changes. The calculation is based on satellite data for the period from 1979 to 1999. Using information on greenhouse gases, aerosols, ozone, solar energy and volcanic activity, scientists simulate the conditions for the 20th century. Century. According to their time series analyses, the temperature has been changing rapidly over the last 20 to 30 years: in the troposphere it is rising by about 0.07 degrees Celsius per decade, while in the stratosphere there is a cooling of the same order of magnitude.

Surprising insights into climate change

Time series analysis of tropopause thickness obtained by simulation. Sum and single effects