Now that I’m back to researching the surface air temperature record and the Urban Heat Island (UHI) effect, I decided to revisit the temperatures in Las Vegas, Nevada. It’s been over 8 years since I posted about Las Vegas being the poster child for the UHI effect and I showed some warming trend calculations from the hourly temperature data at McCarren International Airport (now Harry Reid International Airport… not kidding) which suggested that much of the warming there has been from … [Read more...]
Canadian Summer Urban Heat Island Effects: Some Results in Alberta
SummaryComparison of rural with urban temperature monitoring sites across Canada during the summers of 1978-2022 shows the expected average nighttime warm bias in urban areas, with a weaker daytime effect. When applied to the Landsat imagery-based diagnoses of increased urbanization over time, 20% of the temperature trends in a small region encompassing Calgary and Edmonton are found to be due to increasing urbanization. Calgary leads the list of Canadian cities with increased urbanization, with … [Read more...]
50-Year U.S. Summer Temperature Trends: ALL 36 Climate Models Are Too Warm
I’ll get right to the results, which are pretty straightforward.As seen in the accompanying plot, 50-year (1973-2022) summer (June/July/August) temperature trends for the contiguous 48 U.S. states from 36 CMIP-6 climate model experiments average nearly twice the warming rate as observed by the NOAA climate division dataset.The 36 models are those cataloged at the KNMI Climate Explorer website, using Tas (surface air temperature), one member per model, for the ssp245 radiative forcing scenario. … [Read more...]
De-Urbanization of Surface Temperatures with the Landsat-Based “Built-Up” Dataset
A relatively new global dataset of urbanization changes over the 40-year period 1975-2014 based upon Landsat data is used to determine the average effect urbanization has had on surface temperatures. A method is presented to compute the magnitude of the Urban Heat Island (UHI) effect on temperatures using the example of summertime 09 UTC (early morning) Integrated Surface Database (ISD) hourly data (mostly from airports) over the period 1973-2022 by comparing urbanization differences to … [Read more...]
UAH Global Temperature Update for June 2022: +0.06 deg. C
The Version 6.0 global average lower tropospheric temperature (LT) anomaly for June 2022 was +0.06 deg. C, down (again) from the May 2022 value of +0.17 deg. C.Tropical CoolnessThe tropical (20N-20S) anomaly for June was -0.36 deg. C, which is the coolest monthly anomaly in over 10 years, the coolest June in 22 years, and the 9th coolest June in the 44-year satellite record.The linear warming trend since January, 1979 still stands at +0.13 C/decade (+0.11 C/decade over the global-averaged … [Read more...]
EV’s Fossil Fuel Economy No Better than ICE Vehicles
Most of the electricity generated in the U.S. continues to come from fossil fuels (61% in 2021). This is not likely to change much in the future as electricity demand is increasing faster than renewables (20% of total in 2020 and 20.1% of total in 2021) can close the gap versus fossil fuels. Given that fact, it is interesting to ask the question:Which uses fossil fuels more efficiently, an EV or ICE (internal combustion engine) vehicle?Most of what you will read about EVs versus ICE … [Read more...]
Analysis of Gas Prices
Gas prices: If you look at inflation-adjusted gasoline prices over the last century, there has been an overall downward trend, reflecting greater efficiency at finding, pumping, and refining petroleum. We are now at $5 a gallon, but that isn't a whole lot more than we've been in the past (for example, just before the 2012 recession). Still, the price is a lot higher than it needs to be given current technology, and the current spike could have been mostly avoided (COVID impacts being the least … [Read more...]
Are High Energy Prices a “Bug” in the Biden Administration?
High gasoline prices are not a "bug" in the view of the Biden Administration, but a "feature." Environmentalists with enough money to pay the premium are giddy because high prices make expensive wind and solar energy more competitive. So, forget about the days when the most cost-saving ideas win in the marketplace, we are now in the era when government policies and regulations determine market prices. Hmmm ... sounds like the old U.S.S.R., eh? How did that work out? It remains to be seen if … [Read more...]
More Snow Hits the Fan this Week: Climate Change Alarmists Still Want it Both Ways
As I predicted, climate change has been blamed for the recent New England blizzard (e.g. from Bloomberg here). During that storm, Boston tied its 24-hr snowfall record at 23.6 inches.Yet, as recently as January 6, we were told by USAToday that Boston’s lengthy 316-day streak *without* one inch of snowfall as of January 1st was caused by global warming.So, which is it? Does global warming cause less snow or more snow?When science produces contradictory claims, is it really … [Read more...]
UAH Global Temperature Update for January 2022: +0.03 deg. C.
The Version 6.0 global average lower tropospheric temperature (LT) anomaly for January 2022 was +0.03 deg. C, down from the December 2021 value of +0.21 deg. C.The linear warming trend since January 1979 now stands at +0.13 C/decade (+0.12 C/decade over the global-averaged oceans, and +0.18 C/decade over global-averaged land).Various regional LT departures from the 30-year (1991-2020) average for the last 13 months are:YEAR MO GLOBE NHEM. SHEM. TROPIC USA48 ARCTIC AUST 2021 01 0.12 0.34 -0.09 … [Read more...]
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