Climate blogger Robert Scribbler and University of Ottawa researcher Paul Beckwith claim the shift is unprecedented and have warned of “climate chaos”, unprecedented changes to weather patterns and have suggested it is a global emergency.

The pair have suggested the shift was most likely caused by man-made climate change, amid claims it caused the jet stream to slow down and create larger waves.

There are two types of jet streams – polar and subtropical in each of the northern and southern hemispheres.

They are caused by atmospheric heating from solar radiation, and remain in place due to the force of inertia.

Mr Scribbler wrote on his environmental blog: “It’s the very picture of weather-weirding due to climate change. “Something that would absolutely not happen in a normal world. Something, that if it continues, basically threatens seasonal integrity.”

The claims have gone viral online, but have been labelled as nonsence by scientists, who said people should rely on peer-reviewed studies published in scientific journals, rather than blog posts from researchers.

Scientists said the claims this was unprecedented climate behaviour weren’t valid and that air flow between the hemispheres happens routinely.

Mr Scribbler describes himself as a progressive novelist, non-fiction writer and emerging threats expert.

Mr Beckwith is working on a PhD focussed on climate at the University of Ottawa.

Mr Scribbler said the equator barrier between the jet streams marks the divide between summer and winter – meaning the “death of winter” could follow if warm weather “leaks into the winter zone”.

He said: “As the poles have warmed due to human-forced climate change, the Hemispherical Jet Streams have moved out of the Middle Latitudes more and more. You get this weather-destabilising and extreme weather generating mixing of seasons.”

You get this weather-destabilising and extreme weather generating mixing of seasons.

Climate blogger Paul Scribbler

Mr Beckwith argued it would signal a “sustained period of climate system mayhem” which could be difficult to stop.

He said: “Our climate system behaviour continues to behave in new and scary ways that we have never anticipated, or seen before.

“Welcome to climate chaos. We must declare a global climate emergency.

“The behaviour of the jet stream suggests massive hits to the [global] food supply and the potential for massive geopolitical unrest. There’s very strange things going on on planet Earth right now.”

But several scientists, who all said air flow between hemispheres is known to happen, have been quoted in The Washington Post, dismissing these suggestions.

Cliff Mass, a professor of meteorology at the University of Washington, said: “This is total nonsense. “Flow often crosses the equator.”  READ MORE

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