I’ve been saying for years that surface temperature measurements (and long term trends) have been affected by encroachment of urbanization on the placement of weather stations used to measure surface…
Category: UHI
New paper: Urbanization has increased minimum temperatures 1.7K in the UK
From the Royal Meteorological Society. (h/t to reader NJSnowFan) How much has urbanisation affected United Kingdom temperatures? Ian L. M. Goddard, Simon F. B. Tett Abstract This study aims to…
The Climate Sciences Use Of The Urban Heat Island Effect Is Pathetic And Misleading
By Geoffrey H Sherrington, Spinal Tap’s Nigel Tufnel demonstrates his hifi speakers are louder because the numbers all go to 11. https://www.youtube.com/watch?v=KOO5S4vxi0o Scientific control knobs for climate change have to…
Urban Heat Island Influence Inadequately Considered in Climate Research
Guest Opinion: Dr. Tim Ball The Intergovernmental Panel on Climate Change (IPCC) deliberately limited climate science to focus on CO2 and temperature. The United Nations Framework Convention on Climate Change…
Quote of the Week: That time when climate science believed UHI was causing most of the twentieth century warming
AMS fellow Joe D’Aleo writes of a time when Thomas Karl, former director of the National Climatic Data Center (NCDC) actually believed that UHI and station siting was a problem…
Surprise: Cold wave reveals potential benefits of urban heat islands
From the PRINCETON UNIVERSITY, ENGINEERING SCHOOL and the “UHI is good for something” department. Still, it’s not a good place to measure climate change. The concrete and asphalt that make…
New paper shows issues with temperature records: Comparing the current and early 20th century warm periods in China
Guest post by Dr. Willie Soon, Dr. Ronan Connolly & Dr. Michael Connolly Recently, a new paper which we co-authored with five other researchers was published in Earth-Science Reviews entitled,…
Study: UHI in Los Angeles is driving off coastal clouds that dampen California wildfires
From the THE EARTH INSTITUTE AT COLUMBIA UNIVERSITY and “an actual case of man-made climate change” department. Urbanization and climate change combine to heighten danger Sunny California may be getting too…
China's Urban Heat Island Problem
How does urban-induced warming in Beijing interact with air temperature in summer? INSTITUTE OF ATMOSPHERIC PHYSICS, CHINESE ACADEMY OF SCIENCES Beijing has undergone several important urbanization development stages since late…
Study: city street & building layout determine intensity of the Urban Heat Island effect
How cities heat up The way streets and buildings are arranged makes a big difference in how heat builds up, study shows CAMBRIDGE, Mass. – The arrangement of a city’s…
Study: 'Heat island' effect could double climate change costs for world's cities
From the UNIVERSITY OF SUSSEX and overheated climate science department, comes a claim that just doesn’t seem plausible, suggesting that in the future, nearly 11% of a “worst-off city” gross…
Study: UHI in Hong Kong accounts for most 'warming' since 1970
From the INSTITUTE OF ATMOSPHERIC PHYSICS, CHINESE ACADEMY OF SCIENCES How much warmer has Hong Kong’s urban area become during the past 4 decades? Characterizing the urban temperature trend using…
Study: Haze in China amplifies UHI effect
Study reveals surprising role of haze in the warming of Chinese cities Research reveals that impacts of haze pollution in the US and China vary significantly From the YALE SCHOOL…
Important study: Waste heat is a major source of national warming, significantly pollutes climatic record
I covered a similar study back in 2008 which you can read about here. This study takes it to a national level, suggesting once again that surface temperature records are…
Future summers could be hotter than any on record
From the NATIONAL SCIENCE FOUNDATION and the “it’s always hotter in the city than the country department comes this collection of spin: In 50 years, summers across most of the globe…
Study: UHI affects the urban growing season
From the UNIVERSITY OF WISCONSIN-MADISON Spring comes sooner to urban heat islands, with potential consequences for wildlife MADISON, Wis. — With spring now fully sprung, a new study by University…
How not to measure temperature (or climate) #97 – California's warming air temperatures are population and site bias related
A couple of days ago, I highlighted a worst of the worst NOAA climate monitoring station in Arizona with the help of a scientist from the University of Washington. My…
Study proves urban heat islands exist, even in the Arctic
From the “we told you so years ago” department comes this interesting study that might explain the 8 °C red spot in the Russian Arctic that NASA GISS always seems…
♫ I left my UHI, in Sannn Frannncisco ♪
Apologies to singer Tony Bennett for the title. Our own “Charles the moderator” writes in with this curious picture from Weather Underground showing downtown San Francisco at about 2:15PM September…
Obvious science: NASA finds vegetation essential for limiting city warming effects
From the “department of limiting UHI” and NASA/GODDARD SPACE FLIGHT CENTER Cities are well known hot spots – literally. The urban heat island effect has long been observed to raise…
Think UHI doesn't affect the climate? Think again.
From AGU: More urban heat; less summer fog, on California coast Larry O’Hanlon writes on the AGU blog Geospace: The summer fog that shrouds coastal southern California – what locals…
UHI – worse than we thought
Remember when I measured the UHI in Reno, NV? It seems the normally alarmist “Climate Central” is just now getting around to recognizing UHI, but of course, they have to…
Something Detroit has in abundance – UHI
Detroit gets a lot of negative press these days, mainly because it has become a poster child for badly managed cities and decline, but it does seem to have UHI…
Macro, Meso, and Micro Climates: The Importance of Trees in Urban Climates
Guest essay by Dr Tim Ball I think that I shall never see a poem lovely as a tree, –Joyce Kilmer Is dishwater dull? Naturalists with microscopes have told me…
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