Is Global Warming Shifting the Jet Stream?
The position of the jet (blue shading) during the Palm Sunday tornado outbreak from 1965. A study from the Carnegie Institution has shown that the jet streams in both hemispheres have risen in altitude and have shifted slightly toward the poles over the 23-year period between 1979 and 2001. The shift in the jet streams could be due to global warming and fits the prediction of global warming models, according to the report. The researchers used data that included outputs of weather prediction models, conventional observations from weather balloon and surface intrumentation along with remote observations from satellites. Some of the specific findings from the study…….. –The jet stream in the northern hemisphere has been shifting north at a rate of 12 miles per decade, which I agree is very small, but also pretty meaningless. The authors note that if the trend continues then it could cause some problems…..but when? –The northern hemisphere jet has also weakened. –As the jet strea
