Last year tied for the warmest year on record
 

On Feb 22, 11:11*am, Sam Wormley wrote:
Last year tied for the warmest year on record. Jay Gulledge
summarizes key findings from NOAA.

See:http://www.pewclimate.org/blog/gulle...est-year-recor....

Every January, NOAA s National Climatic Data Center provides an expert
analysis of the previous year s climate. This puts the extreme weather
of 2010 into a broader context. The record warmth of the past year adds
to the huge body of evidence that the earth continues to warm.

Using extrema to find a trend is provably invalid, and the differences
between a tie and a winner her are statistically insignificant.

HOWEVER, . . .

Please note that these data show no statistically significant recent
downturn. The globe continues to warm.

Also note the observation, "Global snow cover was the lowest on
record." Models are showing the Northern Hemisphere's climate on the
edge of a ice albedo feedback tipping point.

Last year not tied for the warmest year on record
 

On Tue, 22 Feb 2011 13:10:03 -0800 (PST), "
wrote:



....when
the NOSS, GISS/NASA, and UKMET drop 4800 of
the 6000 stations (the coolest ones) sensible
observers must question the data and the result.

Well, there is another view here.

Why are there fewer weather stations and what's the effect?
http://www.skepticalscience.com/Drop...termediate.htm

"......Dropped weather stations actually show a slightly warmer trend
compared to kept stations. So the removal of these faster warming
dropped stations has actually imposed a slight cooling trend although
the difference is negligible since 1970....."


Also, the graph on the following page shows that Arctic sea ice extent
is continuing to decrease.

http://nsidc.org/data/seaice_index/
Larger image here
http://nsidc.org/data/seaice_index/i...plot_hires.png


That is more consistent with warming.