Just a bit over a month ago, December 14, we ran a blog piece
on a NASA web page that said the sun is primarily responsible for climate change, and that whatever warming is caused by man’s contributions to greenhouse gases is swamped by the effects of the sun and other natural variables.
“The Sun is the primary forcing of Earth’s climate system… According to scientists’ models of Earth’s orbit and orientation toward the Sun indicate that our world should be just beginning to enter a new period of cooling—perhaps the next ice age...Other important forcings of Earth’s climate system include such ‘variables’ as clouds, airborne particulate matter, and surface brightness. Each of these varying features of Earth’s environment has the capacity to exceed the warming influence of greenhouse gases and cause our world to cool.”
In commenting on my own blog item, I said, “The likely outcome is that NASA will either withdraw this statement, or ‘clarify’ its position ala the American Physical Society. I wouldn’t be surprised if the NASA link stopped working.”