2013 Was Not A Good Year For Catastrophic Anthropogenic Global Climate Warming

Anthony Watts:

European Space Agency – CryoSat – Click the pic to view at source

Image Credit: European Space Agency – CryoSat

By WUWT regular “Just The Facts”

For anyone keeping track, 2013 has not been a good year for those who propagate the Catastrophic Anthropogenic Global Warming (CAGW) Narrative, also know by a litany of increasingly nebulous buzzwords including “Climate Change“, “Climate Disruption”“,“Global Weirding”, “Ocean Acidification”, and “Extreme Weather“. Regardless of efforts to nebulize CAGW to explain all forms of climatic and weather variation, in 2013 every loosely falsifiable prediction of the CAGW narrative seems to have failed. The apparent complete failure of the CAGW narrative in 2013 could make the most fundamentalist agnostic wonder if Mother Nature sometimes takes sides, aka the Gore Effect, but before we praiseGaia, let’s take a look at some CAGW predictions and the associated 2013 data.

Global Temperature:

“For the next two decades, a warming of about 0.2°C per decade is projected for a range of SRES emission scenarios. Even if the concentrations of all greenhouse gases and aerosols had been kept constant at year 2000 levels, a further warming of about 0.1°C per decade would be expected. {10.3, 10.7}

Since IPCC’s first report in 1990, assessed projections have suggested global average temperature increases between about 0.15°C and 0.3°C per decade for 1990 to 2005.” IPCC AR4 2007

“Gulledge says some current projections point to a rise in average global temperature of 0.5°C (slightly less than 1°F) by the year 2030.” National Geographic 2005

“Global temperatures are increasing” NASA 2009

Global Temperatures through November 2013 had not increased for between 8 years and 11 months to 17 years and 3 months. depending on data set and Remote Sensing Systems (RSS)  reached 17 years in October, 2013:
WoodForTrees.org – Paul Clark – Click the pic to view at source

17 years has significance because in this 2011 paper “Separating signal and noise in atmospheric temperature changes: The importance of timescale” by Santer et al., found that:

Because of the pronounced effect of interannual noise on decadal trends, a multi-model ensemble of anthropogenically-forced simulations displays many 10-year periods with little warming. A single decade of observational TLT data is therefore inadequate for identifying a slowly evolving anthropogenic warming signal. Our results show that temperature records of at least 17 years in length are required for identifying human effects on global-mean tropospheric temperature.

So during the “at least 17 years” “required for identifying human effects on global-mean tropospheric temperature” Earth’s Temperature has been flat/Paused, making it quite difficult to identify any “human effects on global-mean tropospheric temperature”, unless they are of a stabilizing nature. Also, in 2013 “The Pause” in Global Temperature finally received widespread media coverage, i.e.:

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