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My understanding is climate change weakens the jetstream, which results in more frequent winds pushing cold air from the North Pole to the south, and pushing th

by josho 3y ago

My understanding is climate change weakens the jetstream, which results in more frequent winds pushing cold air from the North Pole to the south, and pushing that cold air farther south. Remember a few years back when Texas froze? Climate change means that will happen much more frequently. So yes Calgary is cold. But this is a symptom of something much larger.

COGlory 3y ago
No, Calgary simply gets this cold, and has for the entire history of recorded temperatures. https://www.currentresults.com/Yearly-Weather/Canada/AB/Calgary/extreme-annual-calgary-low-temperature.php https://www.currentresults.com/Yearly-Weather/Canada/AB/Calg...
- josho 3y ago
  That data of coldest days each year is not sufficient to draw any conclusions from. Yes, Calgary gets cold that's clearly not new. What is new, that from some quick google searches, this year they've had both record cold and record warm and record low snowfall and over the summer record fires. Which goes to my previous point that there is something larger going on.
josho 3y ago
> climate change weakens the jetstream... this is a symptom of something much larger. I don't like being downvoted when I'm right, so here are some sources for those doubting my comment. The cold in western Canada is from a Polar Vortex, https://www.cbc.ca/news/canada/british-columbia/polar-vortex-explainer-1.7082446 https://www.cbc.ca/news/canada/british-columbia/polar-vortex... Watch the video and they explain how polar vortex's occur from a breakdown in the usual jetstream and experiencing polar vortex's in el nino years is strange. And an article about the jetstream changing (becoming 'wavier') as a result of climate change, https://www.sciencedirect.com/science/article/abs/pii/B9780128215753000153 https://www.sciencedirect.com/science/article/abs/pii/B97801... So, yes, Calgary gets cold. But this year is also not normal.

by josho 3y ago

COGlory 3y ago

No, Calgary simply gets this cold, and has for the entire history of recorded temperatures. https://www.currentresults.com/Yearly-Weather/Canada/AB/Calgary/extreme-annual-calgary-low-temperature.php https://www.currentresults.com/Yearly-Weather/Canada/AB/Calg...

josho 3y ago
That data of coldest days each year is not sufficient to draw any conclusions from. Yes, Calgary gets cold that's clearly not new. What is new, that from some quick google searches, this year they've had both record cold and record warm and record low snowfall and over the summer record fires. Which goes to my previous point that there is something larger going on.

josho 3y ago

> climate change weakens the jetstream... this is a symptom of something much larger. I don't like being downvoted when I'm right, so here are some sources for those doubting my comment. The cold in western Canada is from a Polar Vortex, https://www.cbc.ca/news/canada/british-columbia/polar-vortex-explainer-1.7082446 https://www.cbc.ca/news/canada/british-columbia/polar-vortex... Watch the video and they explain how polar vortex's occur from a breakdown in the usual jetstream and experiencing polar vortex's in el nino years is strange. And an article about the jetstream changing (becoming 'wavier') as a result of climate change, https://www.sciencedirect.com/science/article/abs/pii/B9780128215753000153 https://www.sciencedirect.com/science/article/abs/pii/B97801... So, yes, Calgary gets cold. But this year is also not normal.