From the NoTricksZone
By P Gosselin
Charts by Kirye
The mean temperature data for 2023, for the city of Tokyo, Japan, and its Hachijō-jima island in the Pacific are now available from the Japan Meteorological Agency (JMA).
First we look at latest annual mean temperature plots for Tokyo since 1997:
Tokyo has in fact cooled modestly since 1997 – despite the the relatively warm reading for 2023 and the city’s massive urban heat island (UHI) effect.
Hachijō-jima sees decades of no change
Moving offshore to the Tokyo island of Hachijō-jima, away from all the massive urban heat island affects, we look at the latest mean annual temperature data going back to 1977.
For Hachijō-jima, 2023 saw a mean temperature of 18.9°C, the highest in about 25 years. Yet, there’s been no warming trend since 1977.
According to the high quality data from the JMA, there’s been no real climate change in decades in neither Tokyo nor Hachijojima, let alone any signs of a climate crisis.
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