Showing posts with label solar activity. Show all posts
Showing posts with label solar activity. Show all posts

Friday, January 09, 2009

Fox News fear mongering


I don't know who the hell decides what goes on the web site at Fox News Channel, but they're starting to look a bit like Weekly World News when they keep putting crap like this on their front page. The actual space.com article they lifted is, of course, somewhat less alarmist.

More to the point, the much ballyhooed renewed cycle of solar activity is not only largely truant, it may not live up to expectations when it does show up.

And the global warming theocrats so want solar cycle 24 to start, and start big while global temperatures remain low. The only problem for them is that when solar activity does pick up again and is followed by increases in global temperatures, how will they spin it?

Friday, December 19, 2008

Something to watch


An article from space.com raises the specter once more of upcoming solar flares wreaking havoc on communications and electronics here on earth. I pretty much dismiss these since we see news items like this all the time yet I don't recall any widespread communications outages attributed to solar activity.

But since there's a faction in the scientific community which insists that solar activity affects our climate more than human-generated CO2, I found it interesting.
The Sun operates on an 11-year cycle, alternating between active and quiet periods. We are currently in a quiet period, with few sunspots on the sun's surface and fewer solar flares, though the next cycle of activity has begun.

It is expected to peak around 2012, bringing lots of sunspots, flares and coronal mass ejections (CMEs). CMEs can interact with the Earth's magnetosphere, causing problems for satellites, communications, and power grids.

This upcoming active period now looks like it will be more intense than the previous one, which peaked around 2006, some scientists think.
Simply put, the theory behind solar effect on the weather is that high solar activity inhibits cloud formation here on earth, leading to warmer temperatures. Low solar activity leads to more cloud formation and lower terrestrial temperatures.

The current period of cooling we're experiencing (which prompted the name change from "Global Warming" to "Climate Change") coincides pretty nicely with the current lull in solar activity. So it'll be interesting to see if we experience an increase in global temperatures concurrent with the increase in solar activity, especially if the global economic slump results in a decrease in greenhouse gas emissions.