s
Want some proof? How about this?
Phoenix reached 110 degrees or hotter on 33 different days during 2011, surpassing the record for most such days in a single year last set in 2007. Records there go back to 1875.
http://www.wrh.noaa.gov/psr/redirect.php?pil=pns&sid=psr&wfo=psr&zone=&lat=0&lon=0&format=pre&date=20110905002944
Sorry; that doesn’t impress me much. Anything else?