I came across this collection of over three dozen climate studies that examined Earth's climate history from various angles. Interestingly these studies consistently produce a hockey stick shape graph reflection of what's happened here on Earth.
The list was put together by Professor Jim Milks over at EnvironmentalForest.blogspot. It underscores the substantive nature of the much maligned and misrepresented "Hockey Stick Graph" which actually first appeared in the iconic Keeling Curve, but was made infamous by the Republican/libertarian's malicious attack against the paleoclimate studies of Dr. Mann, et. al.
{I informed Dr. Mann of posting this. He pointed out: thanks Peter,
yes—it’s a good site, and I have linked to some of their stuff before.
There is one slight error in the piece below (the Keeling Curve is definitely *not* the Hockey Stick!).To which I responded: That's my layperson's sloppiness at work - From my perspective seems to me that our planet's skyrocketing CO2 levels over the past couple centuries looks frighteningly akin to a "hockey stick" shape. But your point is taken.}
This PR campaign singled out Dr. Mann lead researcher of a large team of experts who's evidence these special interests simply refused to acknowledge.
Reality is that Dr. Mann's work isn't needed to make the point that we are really screwing up our planet's climate system, (the thing we and our society depend on for everything).
With thanks to Dr. Milks' for his permission, I reprint his Hockey Stick Graph Collection:
Sunday, October 27, 2013
Enough hockey sticks for a team
One of the persistent denier myths is that the Hockey Stick (usually meaning Mann et al. 1999) 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 2000: 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, et al. 2000: Reconstructed global average temperatures since AD 1500 using temperature data from 616 boreholes from around the globe.
Crowley 2000: 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, et al. 2000: Reconstructed global average temperatures since AD 1500 using temperature data from 616 boreholes from around the globe.
