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Reader questions – Part 2 of 4

I recently received an email from Brittany C asking four questions.  Brittany is allowing me to publish her questions and my answers.  These answers are a combination of scientific fact with conjecture and opinion from me. Earlier, I answered the first of her 4 questions and today I will answer the second.

Question 2: If CO2 were linked to temperature increase wouldn’t that mean that temperatures would have steadily increased from the start of the Industrial Revolution to today?  If that’s the case, why was there a cooling period from the 1940s to the 1970s?

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Thinking Big on Global Warming

Wall Street Journal – October 15, 2007

I think that this is a terrible idea!

This opinion published by the Wall Street Journal suggests that mankind release more pollutants into the atmosphere that will deflect some of the sun and thereby reduce the amount of global warming that we are incurring.

How does adding more stuff to the atmosphere help? What are the side effects? Isn’t this a cosmetic surgery approach to being overweight?

Just like the case of an individual being overweight. The last remedy to save that person should be surgery. Rather, diet and exercise should be employed to make the individual a healthy being. Adding pollutants to the atmosphere as a “sunscreen” has the potential to cause more harm than good and the bad part of the bargain is that we won’t know the side effects until we take the medicine.

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The persistent role of the Sun in climate forcing

Danish National Space Center – March 2007

Once again, we find that the scientific understanding of our complicated climate is evolving. I repeat my call for more effort and concentration in this area of science since it appears that causality of climate change is not fully understood (comments by a famous politician not withstanding).

This study points out that there appears to be something missing between the causes of solar activity and other influences. When you see a claim such as "one can only wonder about the quality of the surface temperature record" then you start to question what is missing.

Yet over the past 20 years the solar cycle remains fully apparent in variations both of tropospheric air temperature and of ocean sub-surface water temperature.

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