I thought this funny.
Fascinating!!!! Who knew??? I mean, who other than any rational thinker in the world?
Researchers in the US have identified a way in which city-dwellers are inadvertently stoking up the heat of the night – by installing air conditioners.
Because the cities are getting hotter as the climate changes, residents are increasingly investing in aircon systems − which discharge heat from offices and apartment blocks straight into the city air. And the vicious circle effect is that cities get still warmer, making air conditioning all the more attractive to residents.
According to scientists at Arizona State University, the air conditioning system is now having a measurable effect. During the days, the systems emit waste heat, but because the days are hot anyway, the difference is negligible. At night, heat from air conditioning systems now raises some urban temperatures by more than 1C, they report in the Journal of Geophysical Research Atmospheres.
Weird, right? I wonder if this could cause warming in the surrounding country side?
To cap this, cities are inevitably hotspots – and it’s not just because of global warming. The concentration of traffic, commuter systems, street and indoor lighting, central heating, light industry, tarmac, tiles, bricks, building activity and millions of people can raise temperatures as much as 5C above the surrounding countryside.
Maybe this AC thing is just a fad …..
At present, 87% of US households have air conditioning, and the US – which is not one of the warmer nations – uses more electricity to keep cool than all the other countries of the world combined. To keep the people of Phoenix cool during periods of extreme heat, air conditioning systems can consume more than half of total electricity needs, which puts a strain on power grids.
Right. What a dumbass. True, the US as a whole isn’t one of the warmer nations. Arizona, OTOH, is pretty much a hot desert.
I wonder how much of a strain it would put on our grids if we didn’t suppress our energy sources.
I wonder if there’s a message in all of this?
But, worldwide, normally warm countries are experiencing increasing extremes of heat, and conditions in cities have on occasion become lethal.
Oh, yes, I see. Americans should feel guilty about our ability to cool ourselves, and shouldn’t use ACs and die in the heat like other places do, right?
Well, this is progress. Of course, I have no illusions that the nutters would finally put two and two together and understand that the UHI (urban heat island) effect is about the only real data input which causes the temperature data sets to appear like they’re rising.
Warmists used to claim this doesn’t do much to the data. Then, they decided to “adjust” their data in an attempt to compensate for it. Any real examination of the “adjustments” though, show them to be woefully inadequate. The last examination was from that family of scientists which recently started producing documents on climate. But, I can’t seem to find the link to them or the docs.
Doesn’t matter, but, the last one I read on the “adjustments” seemed pretty good. But, anyone can Google for more of the history of UHI and the differing opinions of how it effects our temperature data. Dr. Spencer comes to mind as a good start. Here’s a post he had at WUWT with links to other posts, and from there you can search.
Climate science is typically a good 6-10 years behind climate skeptic blogs.
Air conditioners cause heat in the cities ….. who knew?