Yet another nail in the coffin for the "No warming since 1998" claim

As I've already covered in the past (here, here, and here), the claim that the Earth hasn't warmed since 1998 is pure bunk.  Today, I re-ran a linear regression analysis and discovered that UAH satellite temperature data now shows statistically significant warming since 1998:


Jan. 1998-June 2013 UAH trend ± standard error:

+0.005860 ± 0.002867ºC per year, p = 0.04241

This makes UAH the second global data set to show statistically significant warming since 1998.  GISS was the first and now shows the following trend since 1998:

+0.005763 ± 0.002049ºC per year, p = 0.005443

The last two that I track, HadCRUT4 and NCDC, both show warming but it's not statistically significant as yet.

HadCRUT4 (Jan 1998-May 2013—hasn't updated to June yet)
+0.003812ºC ± 0.001960ºC per year, p = 0.05338

NCDC (Jan 1998-June 2013)
+0.003433 ± 0.001825ºC per year, p = 0.06158



Anyone want to predict when HadCRUT4 and NCDC will show statistically significant warming since 1998?  An even better question is "When will "skeptics" admit that the Earth has been warming since 1998?"

Comments

Post a Comment

Popular posts from this blog

Enough hockey sticks for a team

Image
One of the persistent denier myths is that the Hockey Stick (usually meaning Mann, M. E., R. S, Bradley, and M. K. Hughes. 1999. Northern Hemispheric Temperatures During the Past Millenium: Inferences, Uncertainties, and Limitations. Geophysical Research Letters . 26:759-762 ) has been discredited.  Not only is that myth false but Mann et al. (1999) has been validated through the publication of numerous hockey stick graphs since 1999.  Here is a brief list of the ones I know: Crowley, T. J. 2000. Causes of Climate Change Over the Past 1000 Years. Science 289:270-277 : Used both his own and Mann et al. (1999)'s hockey sticks to examine the cause of temperature changes over the past 1,000 years.  Found that natural forcings could not explain twentieth century warming without the effect of greenhouse gases. Huang, S, H. N. Pollack, and P. Shen. 2000. Temperature Trends over the past five centuries reconstructed from borehole temperatures. Nature 403:756-758 : Reconstru...
Read more

Tom Luongo's multiple lies about climate change

Image
An old friend posted an " article " by Tom Luongo, a former chemist (B.S. from the University of Florida) who now writes the Resolute Wealth Newsletter, on Facebook.  Unfortunately, that article is chock full of lies about climate science.  Since Facebook comments aren't the best forum for debunking Gish Gallops, I'm taking the liberty of debunking them here. [Update: Since Luongo got most of his claims from John Casey, I've written something about his brand of science here .]
Read more