One of today’s headlines read:

Runaway climate change could trigger ‘Hothouse Earth’ with 200ft sea level rises, warn scientists

Well it is that time of year newspapers traditionally refer to a “silly season.”

Here is one of many peer reviewed papers from the 1970s predicting a coming ice age.

ATMOSPHERIC CARBON DIOXIDE AND AEROSOLS:

Effects of Large Increases on Global Climate.

Abstract.

Effects on the global temperature of large increases in carbon dioxide and aerosol densities in the atmosphere of Earth have been computed.

It is found that, although the addition of carbon dioxide in the atmosphere does increase the surface temperature, the rate of temperature increase diminishes with increasing carbon dioxide in the atmosphere. For aerosols, however, the net effect of increase in density is to reduce the surface temperature of Earth. Becuase of the exponential dependence of the backscattering, the rate of temperature decrease is augmented with increasing aerosol content. An increase by only a factor of 4 in global aerosol background concentration may be sufficient to reduce the surface temperature by as much as 3.5 deg.K. If sustained over a period of several years, such a temperature decrease over the whole globe is believed to be sufficient to trigger an ice age.

The rate at which human activities may be inadvertently modifying the climate of Earth has become a problem of serious concern . In the last few decades the concentration of CO2 in the atmosphere appears to have increased by 7 percent  . During the same period, the aerosol content of the lower atmosphere may have been augmented by as much as 100 percent .

How have these changes in the composition of the atmosphere affected the climate of the globe? More importantly, is it possible that a continued increase in the CO2 and dust content of the atmosphere at the present rate will produce such large-scale effects on the global temperature that the process may run away, with the planet Earth eventually becoming as hot as Venus (700 deg. K.) or as cold as Mars (230 deg. K.)?

We report here on the first results of a calculation in which separate estimates were made of the effects on global temperature of large increases in the amount of CO2 and dust in the atmosphere. It is found that even an increase by a factor of 8 in the amount of CO2, which is highly unlikely in the next several thousand years, will produce an increase in the surface temperature of less than 2 deg. K.

However, the effect on surface temperature of an increase in the aerosol content of the atmosphere is found to be quite significant. An increase by a factor of 4 in the equilibrium dust concentration in the global atmosphere, which cannot be ruled out as a possibility within the next century, could decrease the mean surface temperature by as much as 3.5 deg. K. If sustained over a period of several years, such a temperature decrease could be sufficient to trigger an ice age!

Schneider S. & Rasool S., “Atmospheric Carbon Dioxide and Aerosols – Effects of Large Increases on Global Climate”, Science, vol.173, 9 July 1971, p.138-141


Those results were based on a climate model developed by none other than James Hansen, the godfather of the global warming scare incidentally. He’s obviously a Dedicated Follower Of Scientific Fashion.

On the other hand:

 

Do Variations in the Solar Cycle Affect Our Climate System?

” The solar-plus-ozone change leads to increased tropical stratospheric warming in the mid-to-upper stratosphere during solar maximum conditions. Higher latitudes during Southern Hemisphere winter receive no such augmentation, and the increased latitudinal temperature gradient results in stronger stratospheric west winds. Via the interaction of these wind changes and planetary waves propagating up from the troposphere, the circulation in the stratosphere weakens, a response characterized by greater relative upwelling in the Southern Hemisphere extratropics, and more downwelling in the northern extratropics. This downwelling has a tendency to extend into the troposphere, limiting convection and rainfall during Northern Hemisphere summer at these latitudes, producing drier conditions. This effect is seen in some paleoclimate records and has been attributed to solar influence.”

https://www.giss.nasa.gov/research/briefs/rind_03/


However:

U.N. Official Reveals Real Reason Behind Warming Scare

“At a news conference last week in Brussels, Christiana Figueres, executive secretary of U.N.’s Framework Convention on Climate Change, admitted that the goal of environmental activists is not to save the world from ecological calamity but to destroy capitalism.
“This is the first time in the history of mankind that we are setting ourselves the task of intentionally, within a defined period of time, to change the economic development model that has been reigning for at least 150 years, since the Industrial Revolution,” she said.
Referring to a new international treaty environmentalists hope will be adopted at the Paris climate change conference later this year, she added: “This is probably the most difficult task we have ever given ourselves, which is to intentionally transform the economic development model for the first time in human history.”

http://www.investors.com/politics/editorials/climate-change-scare-tool-to-destroy-capitalism/


I long since gave up contributing my own thoughts to the climate debate having grown bored with being told whenever I pointed out the logical flaws in the Warmageddonists’ arguments, “You’re not a trained scientist so you are not capable of understanding how science works,” and then being informed that “when a consensus of scientists agree that a theory is probably right then as far as people like me, and probably you are concerned it must be accepted as a fact.

Well its true I’m not a scientists (I am a trained logician though,) but I did learn about the scientific method when at school, and it was nothing like that.

 

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