Saving lives from excessive warmth requires decreasing the city warmth island impact, not carbon emissions! – Watts Up With That?
Jim Steele
From the peer-reviewed book “Detecting and attributing Northern Hemisphere land surface warming (1850–2018) to human and natural factors: challenges of inadequate data”
Soon et al (2023): The the majority of stations The figures used to compare the mid-19th century with the present The trend between rural and urban areas is 60% higher than the trend for Record. It seems plausible that at least some of this additional warming is due to urbanization bias.”
Graphic A shows US weather stations with at least 70 years of data. Blue dots show cooling trends (34%) and red crosses warming trends (66%). Stations with Warming trends are concentrated in areas with the most urban heat islands (Graph B), such as the Northeast, Lake Michigan, and the West Coast. Inconsistent with a homogeneous CO2 global warming effect, cooling weather stations are observed incongruently alongside warming stations. However, such contrasting pairs are easily explained by natural vegetation vs. urban heat islands.
For Indianapolis, IN, based on infrared satellite data, surface temperatures in July 2019 in urban centers reached 118 °F (red in Graph D and the gray areas in natural colors in Graph C). Natural temperatures only reached 68 °F (blue in Graph D and dark green areas in Graph C). For example, the large blue area to the northwest of Graph D is Eagle Creek Park.
Urban heat islands are the centers of most heat-related deaths. The fight to save lives from unnatural extreme heat requires reducing urban heat island effects. Reducing carbon emissions is irrelevant!
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