I found some aerial photos of the CSU campus, showing land use changes around the Fort Collins weather station. The station has warmed about 4F over the last 100 years.
In 1937, the station was located in the middle of a farm,
By 1950, the area was starting to get built up.
By 1969, the city had surrounded the weather station.
Now it is in the middle of a parking lot.
Hansen tells us that UHI isn’t important, or has caused cooling.
U.S. Historical Climatology Network
After adjustments, USHCN shows a strong warming trend in New York. They achieve this by massively cooling the past. All temperatures prior to 2000 are cooled as much as three degrees. The older a temperature record is, the more it has been tampered with. USHCN is cooling the past, at a rate of about two degrees per century.
We know from studies published on the GISS web site, that there has been a huge UHI impact in New York – up to 14F during summer nights.
pubs.giss.nasa.gov/docs/2009/2009_Rosenzweig_etal.pdf
Because of this large UHI effect, the USHCN adjustments should do the exact opposite of what they are doing. Recent temperatures should be adjusted downwards by several degrees, and older temperatures should be left alone.
The people in charge are defrauding the public.
Hansen tells us that 4C UHI is insignificant, in comparison to the 0.4C anomaly of 2012.
NEW YORK CITY’S HEAT ISLAND.
(Rosenthal et al. 2003; Gaffin et al. 2008), and the heat island signal, measured as the difference between the urban core and the surrounding rural surface air temperature readings taken at National Weather Service (NWS) stations, averages ~4°C on summer nights (Kirkpatrick and Shulman 1987; Gedzelman et al. 2003; Gaffin et al. 2008). The greatest temperature differences typically are sustained between midnight and 0500 Eastern Standard Time (EST; Gaffin et al. 2008).
Surface air temperature readings from these stations show that the city was several degrees warmer than the suburbs, and up to 8°C warmer than rural areas within 100 km of the city, with conditions that had been sustained throughout the previous night.
1930s deniers are running rampant in government, led by James Hansen – who has been working for decades to distort the historical records of the 1930s.
If accurate records of the 1930s were still included in Hansen’s temperature graphs, they would decimate his theory and kill a $100 billion industry.
Empirical evidence does not lend much support to the notion that climate is headed precipitately toward more extreme heat and drought. The drought of 1999 covered a smaller area than the 1988 drought, when the Mississippi almost dried up. And 1988 was a temporary inconvenience as compared with repeated droughts during the 1930s “Dust Bowl” that caused an exodus from the prairies, as chronicled in Steinbeck’s Grapes of Wrath.
NASA GISS: Science Briefs: Whither U.S. Climate?
Hansen 1999
Twenty two of South Dakota’s twenty-five hottest Junes, occurred with CO2 below 350 ppm.
A triple-digit high today is no error, said NWS meteorologist Kari Bowen.
“We are expecting those high temperatures for this area today,” she said. “The reason for that is the jet is up north, we have this big ridge of high pressure that’s building in, causing all the air to sink and heat up.”
102 degree heat expected in Fort Collins today, shattering record | The Coloradoan | coloradoan.com
This is just crazy talk, but the fact that air is sinking and heating over Colorado, means that it is rising and cooling somewhere else. I have this bizarre theory that the mass and average barometric pressure of the atmosphere don’t vary much from year to year.
Regardless, 97% of scientists are 99% certain that CO2 causes heatwaves – rather than sinking air.
NASA’s Jay Zwally not only predicted a possible ice-free Arctic this summer, but his work also formed the basis of Hansen’s five metres of sea level rise .
Hansen still argues 5m 21st C sea level rise possible
This is interesting – here is the latest paper from James Hansen and coauthor Miki Sato Paleoclimate Implications for Human-Made Climate Change. If you are up to reading climate science papers it’s highly recommended (I’m a little slow in getting to it – the press release was Dec 8th 2011 but I just got to reading it yesterday and today).
A little background is in order – one of the serious scientific debates in the climate science community over the last decade has been the implications of the unexpectedly large acceleration of glacier discharge in Greenland and Antarctica and in particular a discovery by Zwally et al in 2002 that surface melt water can get down the base of a glacier and lubricate its motion. Prior to the early 2000s it was assumed that ice sheets would decay mainly by melting on the surface and climate models all assumed that they would decay only very slowly in a warmer world – it was a surprise to realize that the most important breakdown mode was actually basal lubrication and sliding down into the ocean.
I didn’t realize they had serious scientific debates at the nuthouse. I hope they don’t allow these folks to use anything sharper than a crayon.
Hansen in particular became the leading spokesman for the view that the ice sheets on Greenland and parts of Antarctica would prove quite unstable under Anthropocene conditions and might break down in a rapid non-linear manner and cause very large levels of twenty-first century sea level rise.
Hansen still argues 5m 21st C sea level rise possible | Energy Bulletin
Can I get get some global warming research money? After all, I made a ridiculous unsupportable, alarmist prediction which should be worth at least $5-10 million.
102 degree heat expected in Fort Collins today, shattering record
It was hot this morning, but triple-digit heat will scorch Fort Collins this afternoon.
The expected high today in the city is 102 degrees, according to the National Weather Service. That would shatter the previous record of 100 degrees set in 1936.
The average historic high temperature for today is 80 degrees. A triple-digit high today is no error, said NWS meteorologist Kari Bowen. “We are expecting those high temperatures for this area today,” she said. “The reason for that is the jet is up north, we have this big ridge of high pressure that’s building in, causing all the air to sink and heat up.”
Expect the thermometer to begin breaking records between 3 p.m. and 4 p.m.
102 degree heat expected in Fort Collins today, shattering record | The Coloradoan | coloradoan.com
The official high temperature in Fort Collins today was 98 degrees, two degrees cooler than 1936. According to the rhetoric of the newspaper, 1936 “shattered” 2012 temperatures.
