That is a question that I’m sure is on a lot of people’s minds as they wonder if they should attend. It seems like the sort of thing warmists would do – go someplace hot, talk about how hot it is, and then hope a new record is set while there to underscore the importance of saving the planet from hotter and hotter days. It’s a PR flack’s dream.
But, expectations and reality in the climate debate are often far different, and it is that difference that makes Las Vegas a perfect place to discuss temperature, climate, and global warming, as I show below. First, let’s look at the potential for new record highs during the days of the ICCC9 conference:
Here are the records for early July during the conference, it would have to exceed 114/113 to have a new record. The normal high is 104 for the dates of July 7/8/9:
As you can see there has been a warming trend in average temperature for Las Vegas, something sure to be pounced on:
But, it turns out that most of that trend is in overnight temperatures, which are most affected by the explosive growth of Las Vegas and the resultant UHI (1):
Inconveniently, there is no upward trend in maximum temperatures, in fact it appears there has been a slight downward trend since the late 1930′s and early 1940′s:
There also seems to be no increase in record high temperatures beyond the levels first noted when record keeping began in 1937, no new maximum temperature records have exceeded the 117 degree record set on July 24th, 1942 (2):
All in all, I think Las Vegas is PERFECT place to have a climate conference, because it shows that expectations of warming and the reality of data just don’t match.
I’ll be there and I’ll be giving a final report on our SurfaceStations project and what we’ve found. Registration is here is you want to attend: http://climateconference.heartland.org/
(1) Summary Report, Urban Heat Island Effect, City of Las Vegas, Office of Sustainability, April 2010
(2) Source for data: NOAA/NWS Las Vegas, from