Yesterday, in the post Countdown to Copenhagen, I mentioned that there are still quite a few scientists around the world who agree that climate change exists, but don’t agree about the cause. To kick off my three views in seven days series, is a review of the book, “The Chilling Stars A New Theory of Climate Change.” The authors are climate physicist Henrik Svensmark and award winning science writer Nigel Calder.
Let me start off by acknowledging that the majority of scientists believe that greenhouse gas emissions, primarily CO2, are causing global climate change. However, here is what Svensmark and Calder say about carbon dioxide. “To correct apparent over-estimates of the effects of carbon dioxide is not to recommend a careless bonfire of the fossil fuels that produce the gas. A commonplace libel is that anyone skeptical about the impending global-warming disaster is probably in the pay of the oil companies.”
They continue, “In fact, there are compelling reasons to economize in the use of fossil fuels, which have nothing to do with the climate–to minimize unhealthy smog, to conserve the planet’s limited stocks of fuel, and to keep energy prices down for the benefit of the poorer nations.”
So if climate change is not driven in part by CO2, as argued by the authors, then what is the primary driver of climate change?
The premise of Svensmark’s climate change theory is that the interplay between clouds, the sun and cosmic rays, have a greater effect on climate than man-made carbon dioxide. For those who don’t remember much of any science from high school or college a cosmic ray is comprised of sub-atomic particles from exploded stars. Continue reading