Thursday, September 30, 2010

Our snoozing sun

These photos show sunspots near solar maximum on July 19, 2000, and near solar minimum on March 18, 2009. Some global warming skeptics speculate that the Sun may be on the verge of an extended slumber.

This article, published in the New York Times in July of 2009, throws some light on the chilly summer of 2010. The sun has not increased its activity since last year, as the farmers in the northern hemisphere are acutely aware of. This quote from the article could furnish some of the explanation for what is happening:

"The Sun, the Danish scientists say, influences how many cosmic rays impinge on the atmosphere and thus the number of clouds. When the Sun is frenetic, the solar wind of charged particles it spews out increases. That expands the cocoon of magnetic fields around the solar system, deflecting some of the cosmic rays.
But, according to the hypothesis, when the sunspots and solar winds die down, the magnetic cocoon contracts, more cosmic rays reach Earth, more clouds form, less sunlight reaches the ground, and temperatures cool."

1 comment:

Anonymous said...

As she preps for baby No. 2, Courtney tells Us she's taking special [url=]Twins 33 Justin Morneau red 2010 All Star Jerseys[/url] care to cater to soon-to-be big sister Gia. Recently, the Los Angeles-based Lopez family surprised her with a trip to Disney World. And as any little girl obsessed with princesses would be, Gia was over-the-moon. Even mom and dad soaked up the Disney magic when the family had a private meet-and-greet with Gia's favorite celebs.
VIDEO: Organizational tips from one of Hollywood's busiest moms
Recalling the [url=]Yankees 52 CC Sabathia Red 2010 All Star Jerseys[/url] special day, Courtney says she was surprised at her daughter's grown-up behavior when meeting Disney's leading ladies. "Mario was holding [url=]2009 All Star Detroit Tigers 35 Verlandea Blue Jerseys[/url] her and she went in and [url=]2009 All Star Philadephia Phillis 8 Shane Victorino Red Jerseys[/url] was just like 'What?! What is going on in here?' It was such a little adult [moment of her], and we just laughed," she remembers, [url=]Twins 5 Cuddyer Red 2011 All Star Jerseys[/url] adding that Gia loves to chatter away at home. "The way she says things, growing into a little child -- it's just amazing how her mind works and how they learn. She's just a little spitfire!"
For much more from Courtney Lopez -- including why she says taking time out of each day for herself makes her a better mom -- watch the video above now!