Please quote the source when you paste a quote.Continued post...
After studying satellite and radiosonde (weather balloon) data, John D. McLean, Chris R. de Freitas, and Robert M. Carter concluded that ocean patterns dominate climate change in the tropics. They write, "Overall the results suggest that the Southern Oscillation exercises a consistently dominant influence on mean global temperature, with a maximum effect in the tropics, except for periods when equatorial volcanism causes ad hoc cooling. That mean global tropospheric temperature has for the last 50 years fallen and risen in close accord with the SOI [Southern Oscillation Index] of 5-7 months earlier shows the potential of natural forcing mechanisms to account for most of the temperature variation."
Petr Chylek and Ulrike Lohmann "use the temperature, carbon dioxide, methane, and dust concentration record from the Vostok ice core to deduce the aerosol radiative forcing during the Last Glacial Maximum to Holocene transition and the climate sensitivity." Their research "suggests a 95% likelihood of warming between 1.3 and 2.3 K due to doubling of atmospheric concentration of CO2." (A degree Kelvin [K] is equal to a degree Celsius [C].) These values are considerably lower than the sensitivity values estimated by the IPCC.
In another study, the authors use satellite and surface temperature observations to study the effect of aerosols on climate and to examine climate sensitivity. They find "that the climate sensitivity is reduced by at least a factor of 2 when direct and indirect effects of decreasing aerosols are included, compared to the case where the radiative forcing is ascribed only to increases in atmospheric concentrations of carbon dioxide."
Sherwood B. Idso reviews various "natural experiments" that can reveal how sensitive the climate is to increasing concentrations of greenhouse gases and concludes: "Over the course of the past 2 decades, I have analyzed a number of natural phenomena that reveal how Earth's near-surface air temperature responds to surface radiative perturbations. These studies all suggest that a 300 to 600 ppm [parts per million] doubling of the atmosphere's CO2 concentration could raise the planet's mean surface air temperature by only about 0.4°C. Even this modicum of warming may never be realized, however, for it could be negated by a number of planetary cooling forces that are intensified by warmer temperatures and by the strengthening of biological processes that are enhanced by the same rise in atmospheric CO2 concentration that drives the warming. Several of these cooling forces have individually been estimated to be of equivalent magnitude, but of opposite sign, to the typically predicted greenhouse effect of a doubling of the air's CO2 content, which suggests to me that little net temperature change will ultimately result from the ongoing buildup of CO2 in Earth's atmosphere."
Are you paid to post this stuff, by the way?
You forgot the link, Krusty.
A cut'n'paste from American Enterprise Institute.
The people who offer scientists $10,000 to criticise global warming science.
The people who took $1.6m from ExxonMobil.
What do you get if you have that venal attitude?
A handful of papers from fringe scientists, cracks, ideologues and outright charlatans, papers which do not overturn the evidence for carbon as the cause of global warming because the evidence does not support them, or they have been shown to be wrong.
But they are popular round the denier blogs with people desperate to believe global warming is not true.
It is folks, and the people who tell you otherwise are whoring for the fossil fuel industry, whether they know it or not.