These events, called “tropopause folds,” are uncommon, but can happen during blasts of bitter cold air during the winter.

Recent research has shown that increases in the height of the tropopause over the past two decades are directly linked to ozone depletion and increased greenhouse gases. LIVERMORE, Calif.

Scientists have shown that human activity is having an impact on the height of the tropopause - the boundary between the troposphere (the lowest layer of the atmosphere) and the stratosphere. The ...

That region, the tropopause, is pushing up the boundary with the stratosphere by about 50-60 meters (about 165-195 feet) per decade. The rising is caused by warming temperatures near Earth's ...

jet stream—High-speed winds usually found at high altitudes, just below the tropopause, between 25,000 and 45,000 ft. The term jet stream was coined by the first pilots who encountered this ...

The tropopause – a boundary within the atmosphere – is increasing in altitude due to climate change. The lowest layer of the atmosphere where we live and breathe is called the troposphere ...

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But when they hit the tropopause, the clouds are stopped in their tracks. Usually, the atmosphere gets cooler and less dense as you get away from the surface, but at the tropopause there is an ...

Arctic air is making New England feel colder than Anchorage, Alaska. Meteorologist Ken Mahan breaks down what’s behind the freeze and the forecast. (Photo by Jessica Rinaldi/Globe Staff) The ...

Recent research has shown that increases in the height of the tropopause over the past two decades are directly linked to ozone depletion and increased greenhouse gases. The tropopause is the ...