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Canada Warming At Twice the Global Rate, Report Finds (www.cbc.ca)

An anonymous reader quotes a report from CBC.ca: Canada is, on average, experiencing warming at twice the rate of the rest of the world, with Northern Canada heating up at almost three times the global average, according to a new government report. Entitled "Canada's Changing Climate Report (CCCR)," the study was commissioned by the Environment and Climate Change Department and was slated to be released officially on Tuesday. That release date was moved up to Monday after CBC published its story about the leaked report.

The leaked copy of the report says that since 1948, Canada's annual average temperature over land has warmed 1.7 C, with higher rates seen in the North, the Prairies and northern British Columbia. In Northern Canada, the annual average temperature has increased by 2.3 C. According to the U.S. National Oceanic and Atmospheric Administration (NOAA), since 1948, global average temperatures have increased by about 0.8 C. Along with these temperature increases, the CCCR says Canada is experiencing increases in precipitation (particularly in winter), "extreme fire weather" and water supply shortages in summer, and a heightened risk of coastal flooding. The document says that while warming in Canada has been the result of both human activity and natural variations in the climate, "the human factor is dominant," especially emissions of greenhouse gases.

8 of 245 comments (clear)

  1. Urban heat? by LynnwoodRooster · · Score: 2, Informative

    The Royal Metrological Society in the UK found that 1 deg of the increase was from urbanization, not CO2. Buildings/asphalt absorbing heat during the day and radiating back out during the evening, thereby increasing Tmin (and thus the average). Same effect here?

    --
    Browsing at +1 - no ACs, I ignore their posts. So refreshing!
    1. Re:Urban heat? by Cyberax · · Score: 5, Informative
      No it hasn't. The UHI effect is corrected for in observations. James Watts tried to find the effect, but no amount of data mutilation has provided positive results. Heck, even YOUR own article states this:

      We generally find weak and statistically insignificant relationships between monthly, seasonally or annually averaged T max and urban fraction (Figure 3). When T max is averaged annually, the linear relationship between this and urban fraction is insignificant (at a 97.7% confidence level) at 0.25±0.42 K. The strongest relationships are observed in the winter months with December having an urbanisation effect of 0.67±0.34 K.

      How much are you being paid to spread lies?

    2. Re:Urban heat? by LynnwoodRooster · · Score: 4, Informative

      Not for this report. See chapter 4 for where the data was collected. It was individual stations. A grand total of 32 stations - located in towns - across both the NWT and Nunavut. That is for an area of 3.1 million km^2 - a bit more than Western Europe as a whole (Germany through Ireland, not including Scandinavia).

      As far as satellite data, it shows the predictions are all pretty much wrong, and lends evidence to the sensitivity of CO2 being about half the value as used in modeling.

      --
      Browsing at +1 - no ACs, I ignore their posts. So refreshing!
    3. Re:Urban heat? by religionofpeas · · Score: 3, Informative

      "Anomalies"? Really? Not "conflicting data"?

      No. Please educate yourself: https://www.ncdc.noaa.gov/moni...

      Anomalies vs. Temperature

      In climate change studies, temperature anomalies are more important than absolute temperature. A temperature anomaly is the difference from an average, or baseline, temperature. The baseline temperature is typically computed by averaging 30 or more years of temperature data. A positive anomaly indicates the observed temperature was warmer than the baseline, while a negative anomaly indicates the observed temperature was cooler than the baseline.

    4. Re:Urban heat? by derrickn · · Score: 4, Informative

      "Towns" in the NWT and Nunavut have no pavement. The roads are gravel and ice, with ice predominating for roughly 10 months of the year. And the roads extend about 1 to 1.5 km total - from one edge of town to the other - and then there are no more roads at all. As for buildings re-radiating heat at night - again these towns are small, the buildings are small, and they never really get all that warm. I doubt Stevenson screens or anything else are picking up much heat off of them.

  2. Re:heat rises by PopeRatzo · · Score: 5, Informative

    And yet Alaska remains untouched!

    Yeah, about that:

    https://www.popsci.com/alaska-...

    https://www.smithsonianmag.com...

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    You are welcome on my lawn.
  3. Re:Permafrost bomb by Solandri · · Score: 5, Informative

    Reminder: Atmospheric carbon PPM is all that separates Earth and Venus. The more you know.

    While that's technically true, the difference is so vast that it's a meaningless comparison.

    Earth CO2 concentration, current: 0.04%, 20 C
    Earth CO2 concentration, worst-case model: 0.2% (est)
    Venus CO2 concentration, current: 96.5%, 462 C

    Also worth pointing out that
    Mars CO2 concentration, current: 95.3%, -125 C to 20 C

    The more you know...

  4. Re:heat rises by Maury+Markowitz · · Score: 4, Informative

    > We have higher personal income taxes than the US

    No we don't.

    https://www.investopedia.com/financial-edge/0411/do-canadians-really-pay-more-taxes-than-americans.aspx

    For most people, defining "most" as "at and below the median", you pay less tax in Canada. That, of course, has many caveats and exceptions.