The top foliage of the cherry blossoms has arrived in Washington, D. C. Seeing the Capitol in the spring of 2023 was a visible dinner for me. But, nothing compares to Japan’s beautiful Sakura plants. Get it the brighter Kawazu-zakura selection or the Yoshino peach, these blossoms draw thousands of visitors from all over the world.
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Maybe what most makes Japan visually impressive is the comparison between its teeming cities and quiet rural areas punctuated by sights of beautiful mountains. Another variation in these two different places is their infrared profiles.
Temperatures are generally higher in the practical forests of Tokyo, Osaka, Yokohama, and Nagoya than in the land. The well-known Urban Heat Island ( UHI ) phenomenon is the cause of this disparity. To put it simply, urban centres get hotter because heat is retained by synthetic materials like the steel, masonry, and cement of houses and road. This is compounded by a myriad of heat-generating options like air conditioning units and cars.
Tokyo stands out as the Asian city with the highest UHI impact, followed by Osaka, Yokohama, Nagoya, and Fukuoka. These cities ‘ large populations, thick infrastructure, and minimal vegetation uplift temperatures, with Tokyo’s scale and Osaka’s commercial density making them especially notable.
Despite this occurrence being well known, there have been ages of drumbeats from weather alarmists pointing to every heat and temperatures rise as the result of evil greenhouse gases, especially carbon monoxide. The UHI result, independent of its extensively documented role in affecting local conditions, is relegated in press reviews to a footnote’s standing – if mentioned at all. This isn’t an oversight, it’s a deliberate absence of a notion that undermines the climate group’s spiritual tale of house gas-driven doom.
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A study entitled” Urban Warming in Japanese Cities and Its Relation to Climate Change Monitoring” discusses how many of the urban thermometers are located in dense concrete jungles.  ,
The researchers linked the UHI effect to temperature increases of a few degrees Celsius per century in large Japanese cities. In some, the increase in annual extreme minimum temperatures exceeded 10 degrees Celsius per century.
Analyzing the UHI phenomenon in the Osaka region, scientists found that the temperature difference due to urbanization was broadly 3-4 degrees Celsius during early night hours. A second study compared temperature data from Osaka’s urban weather station to the coastal Yumeshima site, documenting a consistent UHI effect of 1-2 degrees Celsius in central Osaka, with peaks up to 3 degrees Celsius during summer heatwaves.
And this is true across the world. Research covering 141 cities in India revealed that urbanization had led to a 60 % increase in warming. In India’s capital of Delhi, a temperature change of 30 to 35 % in the past several decades is due to UHI.  ,
The media ill serves the public by failing to put sweltering urban days in the context of the UHI effect. Typical consumers of news are not climate scientists, nor should they have to be. Yet, they are fed a steady diet of greenhouse gas hyperbole that has nothing to do with cityscapes that artificially amplify already stifling heat for urban dwellers.  ,
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Yes, there has been a natural warming during the past 150 years or so, a trend that began with the waning of the Little Ice Age in the 18th century. But UHI contributions to local measurements are quite significant and remain largely unaccounted for.  ,
Make no mistake, summer heat in Asian cities is extreme, and I have experienced it personally, even working on heat adaptation projects in India. But to blame human greenhouse gas emissions for baking urbanites is pure ignorance, and ignorance is not bliss.
Editor’s Note: The mainstream media continues to deflect, gaslight, spin, and lie about the effects of climate change.  ,
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