"The jet stream seemed like a direct link between global climate change and extreme weather with big storms, but we didn't really know what happened before 1979," he says.

A multi-century climate record suggests that current Atlantic jet-stream variations are not the cause of an increase in extreme weather events. A multi-century climate record suggests that current ...

The jet stream is about six miles up and acts as the major driver for our weather. What is happening this week is a shift from a convergent flow, where air sinks, to a divergent flow, where air rises.