National Post Tries to Scare Canadians – And Fails If you Look Carefully

National Post has published some maps claiming Canada is going to suffer from “scorching summers”.

I’ve hit my online paper article limit so I’ll post the tweet.

The animated gif starts with a scary January, lots of red. And article/tweet predicts “warm winters, scorching summers”.

Note that they are using “mean temperatures”, not maximums.

But if you capture the monthly images , when do you notice about the summer months?

June/July/Aug are not scary and all red. They are pretty high up on the scale (which means the lowest change)


And I repeat. This is mean temperatures. Not max. And having looked at the data I know many of the BC cities have a very low rate of maximum change versus minimum.

It is the minimums that are climbing in a lot of cities and the max isn’t.

Here is my original hometown of Kelowna. Tmax has barely changed since 1900 (and in fact dropped from 1900 to 1950 and then climbed a bit since then.

The ratio of Tmin change to Tmax change is 10.8 to 1. Look at the Tmin climb. Huge. 7C warmer.


9 thoughts on “National Post Tries to Scare Canadians – And Fails If you Look Carefully

      1. I read at least one NP/FP article a day and never have come across an “article limit”.

        Maybe because I open links in a new private/incognito window/tab.

  1. It is great to see data like this but it’s also can be used to show the fallacy of using tree ring data to estimate annual temperature. Tree ring data only shows what happens during the growing season, nothing about the cold dormant season. So creating a temperature history from tree ring proxies looking only at summer growthand attaching a thermometer data to it is that covers the entire year is truly a cherries to bananas comparison. The thermometer data from the summer shows that Mann’s lack of warming in the summer after 1960’s is perfectly consistent with the summer temperature data but not the annual data.

  2. Note the qualifications of the Journalist “writer” of the article in question.

    “I’m a national writer covering health, medical and social issues for the National Post.”

  3. Apologies for not showing metric.

    I’m with AOL Broadband Canada which makes the internet think I live somewhere in the state of Kansas.

    After the next fluctuating wind-power induced glitch knocks out my modem/router (just guessing here) I’ll wake up back in Tennessee.

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