Posted on 09/05/2023 5:09:43 PM PDT by E. Pluribus Unum
A new peer-reviewed study suggests that much of the observed global warming since 1850 appears to have more to do with urban sprawl than fossil-fuel emissions. Entitled “The Detection and Attribution of Northern Hemisphere Land Surface Warming (1850–2018) in Terms of Human and Natural Factors: Challenges of Inadequate Data,” the study casts doubt on the narrative that mankind’s fossil-fuel emissions are solely responsible for the observed warming during the industrial age.
The study’s authors believe that the Urban Heat Island (UHI) effect, which posits that urban areas are warmer than outlying areas due to the amount of concrete, steel, and other heat-trapping and -relfecting material in cities, may account for up to 40 percent of observed warming since 1850. Obviously, this is much higher than the 10 percent of warming attributed to UHI in the United Nations Intergovernmental Panel on Climate Change’s (IPCC) last report.
The new study surmises that the IPCC’s latest report relies far too heavily on data from urban temperature reporting stations, since urban environments account for only about four percent of global land area.
“Urban areas represent a small fraction of the global land area, yet the land component of the IPCC’s global temperature estimates includes many urbanized weather stations,” the study claims. “As a result, there is concern that they might be contaminated by urbanization bias, i.e., warming biases from the growth of urban heat islands around weather stations.”
They also insist that the role of the Sun is severely undervalued by the IPCC and other mainstream climate models.
“[T]he Total Solar Irradiance (TSI) dataset recommended by the CMIP6 organizers for estimating past solar activity, is a ‘low solar variability’ estimate, just like the four datasets considered by the CMIP5 modeling groups for AR5, and implies a much smaller role for the Sun than using...”
(Excerpt) Read more at thenewamerican.com ...
Then it’s Urban Warming, and I still don’t care.
Global Warming Mostly a Liberal Problem.
that’s a big duh...
(if a volcano or meteor doesn't get us first).
If you put one thermometer on the pavement and one in the middle of a grassy park 50 feet from that pavement, they will give you two entirely different readings.
Minorities affected the most.
Depends on where you measure the temperature.
Any motor cycle rider had knowledge of this
they manipulated the data to get the result they wanted
we know
Plant more trees !
HERESY!!
Which means it’s another democrat problem.
We've know about this all along.
UHI is not from fossil fuels.
Bingo! Cement Jungles get really hot in summer. Globull Warming.
Hot town, summer in the city
Back of my neck gettin’ dirt’n gritty
Been down, isn’t it a pity?
Doesn’t seem to be a shadow in the city
All around, people looking half-dead
Walkin’ on the sidewalk, hotter than a match head...
~ Summer in the City by The Lovin’ Spoonful
I agree with this conclusion.
The official high-low temps for many (perhaps most) urban areas come from the nearest airport.
Those temps are completely accurate, but they are taken close to the runways, because pilots need to know the exact air temp to take off and land safely.
Unfortunately, those official high-low runway temps are almost always warmer than the temps taken in the downtown area, by local TV stations, using the exact same instruments.
Here in Seattle, at 5:20 PM (PST)...
SeaTac Airport - 70 degrees F
KOMO News (downtown) - 67 degrees F
Both weather stations use what is called a Stevenson Screen, which is used internationally to measure temps...
I made these precise arguments to a climate practitioner over some social medium or another. Was not aware this study was in the system.
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