As you may have well heard, sunspot activity is almost nonexistent at the moment. These spots, along with the sun’s overall activity, have been attributed to having one of the strongest affects on earth’s climate. A lack of sunspots is often associated with colder periods and oftentimes, Ice Ages.
What this all means for our current Global Warming debate is this period of solar inactivity will allow us to observe the temperature changes while closely observing the sun’s involvment.
The Ulysses solar probe reports a 13% drop in temperature, a 20% drop in density, and a 30% drop-off in the sun`s magnetic field, marking this as the weakest period of solar wind on record (records go back to the 1960`s).
What does this mean? The Heliosphere is thinning, and thus will block fewer cosmic rays. Heinrick Svensmark theorizes that an increase in cosmic rays reaching the Earth will drive cloud formation, increase the planet`s albedo, thus cooling it.
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This will allow us to see if we are really in the throes of Anthropogenic Global Warming; if temperatures rise (and they haven`t since 1998) then factors other than solar activity are driving climate trends, if not then the greenhouse gas theory is falsified.
If it gets colder during this period of low sunspot doesn’t necessarily mean that the debate will be over. It will just lend more credence to those of us who believe Global Warming is more of a natural occurrence. The anthropological global warming people will just say that it would have gotten a lot colder if our greenhouse gases weren’t there. I can’t wait to see that day because, depending on how cold it gets, environmentalists will basically have to admit that our CO2 saved us from colder conditions in order to keep up their CO2 climate change ruse.