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Subject:  Re: I dont believe man causes Global Warming Date:  2/25/2013  8:16 AM
Author:  eatenbybears Number:  1862147 of 2188561

You cant really use the IPCC data for much any more. The last Assessment Report was 2007, so the data is 6 years old.

Those looking at the date are finding a different story than we have been told .... maybe explaining the 6 year gap in IPCC reports

From 2/10/2013

The adjacent chart plots 30-year changes in HadCRUT3 global temperature dataset, which is considered the gold-standard by the IPCC and the world’s scientists.

The chart’s starting point is January 1880, which represents the first data point (pink circle) of a 30-year temperature change, from January 1850 to January 1880. The chart’s last plot point (green circle) is the difference from December 1982 to December 2012.

The black curve is the simple 5-year average (60-month moving) of all the 30-year changes. And the light grey curve is the plot of monthly CO2 atmospheric CO2 levels from 1880 through 2012.

Per this gold-standard empirical evidence, one can safely conclude the following:

#1. CO2 levels have consistently increased, with short pauses, over this extended period.

#2. 30-year temperature changes peaked both in 1939 and 1998, and then subsequently declined indicating a more powerful-than-CO2, non-greenhouse gas influence at work.

#3. Higher CO2 levels are not causing tipping point, runaway, accelerating, rapid, irreversible, dangerous and/or tipping point long-term global temperature changes, which is contrary to all conventional and “consensus” IPCC expert opinions and their climate models.

#4. The simple 5-year moving average curve during the very recent past indicates a declining period for 30-year changes, possibly signalling an extended cooling phase is upon us.

#5. The 30-year temperature changes, prior to the post-1960 consumer/industrial surge in human CO2 emissions, rival those of the modern up/down 30-year changes, in terms of amount, duration and speed.

#6. Long-term (30 year) global temperature change appears to follow an up and down pattern – an oscillation phenomenon, so to speak, that occurs regardless of CO2 levels.

#7. Since this oscillation is not being produced by higher CO2 levels, then some natural phenomenon is likely driving long-term global temperature change, overwhelming the apparent trivial impact of CO2.

http://www.thegwpf.org/co2-appears-small-effect-long-term-cl...

Bears
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