The City of Los Angeles, and CBS LA, unintentionally expose what a huge component of what the reality of global warming is: namely, that so much of the recorded temperatures are artificially inflated from the Urban Heat Island (UHI) effect, as well as land use. Yes, these are anthropogenic, but, they are not causing future doom, and the reliance on blamestorming a tiny increase in the atmospheric carbon dioxide content is a bunch of mule fritters
(CBS LA) In the race to combat climate change, the city of Los Angeles is employing a surprising new tactic — covering its streets in a grayish-white coating known as CoolSeal.
It’s sprayed onto the roadway with trucks, then spread across the surface with squeegees. However, its impact extends far beyond the edge of the pavement.
Los Angeles, like so many other modern cities, is encased in thousands of miles of asphalt. And dark-colored asphalt absorbs between 80 and 95 percent of the sun’s rays, heating up not just the streets themselves but the entire surrounding area. So when temperatures in Southern California rise above 100 degrees Fahrenheit, surface temperatures on its asphalt roads can climb to 150. It exacerbates a phenomenon known as the “urban heat island effect,†which the EPA says can add up to 22 degrees Fahrenheit to the average air temperature in a city, compared to the surrounding area.
CoolSeal, which is made by a company called GuardTop, helps to reflect solar rays off asphalt so that less heat is actually absorbed. And according to the Bureau of Street Services, the L.A. streets that have been rendered lighter in color with CoolSeal are 10 to 15 degrees cooler on average than the L.A. streets that have not. That, in turn, keeps the neighborhood from heating up quite as much. Buildings in the area don’t need to use quite as much air conditioning, which can curb costs, benefiting residents’ wallets and the environment.
This is actually not a bad idea, despite the high cost of $40,000 per mile (a concern of read about previously is how long will it last with vehicular and pedestrian traffic constantly using it). There’s no doubt that urbanized areas, and even suburban, are artificially inflating the actual temperature. And this gets reflected (no pun intended) in the Warmist data, where they really do not adjust this out, because, hey, they need to keep the Cult of Climastrology going.
Looks slippery when wet.
There can be 5 – 10 degree differences between rural and urban temperature stations. NOAA adjusts rural temperatures by averaging in the added heat from urban UHI stations. Instead of the other way around like they should be doing. Looking at nighttime temperatures shows a clearer picture of what is going on. They only allow less than 1 degree of extra heat in urban areas from UHI, and have long denied that UHI influences their temperature history even though stations have shown many degrees of temperature increase when rural temperature stations are overrun by urban growth. They won’t go against their funding masters.
If only they had painted the cities white since 1900, their false temperature histories would show much less “global warming”. Or climate change or whatever.
So you think the Earth isn’t warming? Even TEACH occasionally says the Earth is warming.
How much of the Earth’s surface do you think is covered by big cities? 50%? 20%? 10%? 1%? Are most of the temperature monitors located there?
Do you remember a few years ago when Tony Wuwt set out to prove that the urban citing of thermometers was biasing the data? He failed, didn’t he?
Anthony Watts did show that a great majority of sensing stations were improperly positioned.
The earth has warmed. I’ve never said different.
I’ll point out the next time you question if it’s warming.
The nignorant angry little black fella is back.
The stupid still burns.
You do that. Because I don’t. How can you have missed the enormous amount of times that I’ve written something to the effect of “the debate is not on warming, but causation”?
Your cartoon in THIS post shows a climate scientist cheating.
So is it your argument that it’s actually warming but climate scientists have exaggerated it?
I’ve never said different. There has been warming, mostly natural, a small percentage anthropogenic, including land use and UHI, and, yes, let’s call it bad data.
The street coating is plastic and will decompose and make up for the plastic bag ban.
So, in the winter, when buildings are using energy to heat, won’t the lost temp in the streets make the buildings use more energy to stay warm?
Yes, but in places like LA they won’t have those super cold temperatures.