[Mr K]

Originally Posted by denphone

That is another subject for another day but this is generally why we have had a scorcher of a summer..

https://www.telegraph.co.uk/news/0/c...pect-get-week/

And what causes the change in the jet stream ?

. Climate scientists have hypothesized that the jet stream will gradually weaken as a result of global warming. Trends such as Arctic sea ice decline, reduced snow cover, evapotranspiration patterns, and other weather anomalies are expected to make the Arctic heat up faster than other parts of the globe. This in turn reduces the temperature gradient that drives jet stream winds, causing the jet stream to become weaker and more variable in its course.[

https://en.m.wikipedia.org/wiki/Jet_...imatic_changes