- 7/31/2014 9:30:53 AM
@magneticnorth I'm not an expert at all. I just like science and space stuff. I'd think that the sun spots actually have a great deal of influence over how much heat reaches the earth. That's why the pattern matches up with climate changes over a history that extends through thousands of years of civilization. Just isolating the past century or even couple of centuries is just skimming off a smal part of the data.
- 7/24/2014 9:09:31 AM
Here's a link: http://www.space.com/19280-solar-activity-earth-climate.html
When researchers look at sea surface temperature data during sunspot peak years, the tropical Pacific showed a pattern very much like that expected with La Niña, a cyclical cooling of the Pacific Ocean that regularly affects climate worldwide, with sunspot peak years leading to a cooling of almost 1 degree Celsius (1.8 degrees Fahrenheit) in the equatorial eastern Pacific. In addition, peaks in the sunspot cycle were linked with increased precipitation in a number of areas across the globe, as well as above-normal sea-level pressure in the mid-latitude North and South Pacific.
For those who can get past politics and focus on science: the fact is that there is climate change, but the fact is that there always has been climate change:
Scientists have also often speculated whether the Maunder Minimum, a 70-year dearth of sunspots in the late 17th to early 18th century, was linked with the coldest part of the Little Ice Age, during which Europe and North America experienced bitterly cold winters. This regional cooling might be linked with a drop in the sun's extreme ultraviolet radiation. In fact, the sun could currently be on the cusp of a miniature version of the Maunder Minimum, since the current solar cycle is the weakest in more than 50 years.
"If the sun really is entering an unfamiliar phase of the solar cycle, then we must redouble our efforts to understand the sun-climate link," said researcher Lika Guhathakurta at NASA's Living with a Star Program, which helped fund the NRC study.
- 7/24/2014 9:02:44 AM
I know there is supposed to be a distinctive pattern to the appearnce of sun spots, based on the earth's orbit in relation to the sun's own rotatation. I read years ago that the spots may be linked to climate changes, which have been happening since the beginning of time -- and way before "climate change" became a trendy and PC term.