Previous global cooling postings in series: Part 1, Part 2, Part 3, Part 4, Part 5, and Part 6.
(click on image to enlarge)
Source here. Although July 2010 was the 17th warmest July since 1895, the
twelve-month period ending July 30 was the second coldest
since 1998. Of course, the U.S. cooling trend will eventually revert to a
warming trend, but the current
decade-long plus global cooling trend has not yet abated, which has been a
major surprise for all global warming alarmists. This trend has
persisted since the super 1997-98 El
Niño event.
With the
continental U.S. having the most extensive thermometer network in the
world, this suggests that possibly other areas of the world would be
reporting a cooling trend if they also had the extent and quality of actual temperature measuring
coverage
that exists in the U.S.
The AGW hypothesis calls for global warming, which is obviously not happening in the U.S. - the case for AGW is significantly weakened by this type of empirical evidence. Just as a reminder, the climate models predicted "global" warming, not partial-global warming, as seems to be the present situation. Note: A temperature trend, as shown in the chart, is not a prediction.
Each red line (link) on graph represents a 12-month period ending in July of related year - continental U.S. temperatures only.
Additional current temp charts here. Historical temp charts here.