[I]f history is a guide, it is safe to say that weak solar activity for a prolonged period of time can have a cooling impact on global temperatures in the troposphere which is the bottom-most layer of Earth’s atmosphere - and where we all live. There have been two notable historical periods with decades-long episodes of low solar activity. The first period is known as the “Maunder Minimum”, named after the solar astronomer Edward Maunder, and it lasted from around 1645 to 1715. The second one is referred to as the “Dalton Minimum”, named for the English meteorologist John Dalton, and it lasted from about 1790 to 1830 (below). Both of these historical periods coincided with colder-than-normal global temperatures in an era now referred to by many scientists as the “Little Ice Age”. In addition, research studies in just the past couple of decades have found a complicated relationship between solar activity, cosmic rays, and clouds on Earth. This research suggests that in times of low solar activity where solar winds are typically weak; more cosmic rays reach the Earth’s atmosphere which, in turn, has been found to lead to an increase in certain types of clouds that can act to cool the Earth.Perhaps history isn't a guide. Perhaps the computer models predicting catastrophic climate change because the earth is warming are true. Guess we're gonna find out.
Tuesday, May 05, 2015
Sun spot baby
This could be a real climate changer:
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4 comments:
Where's the link? Are you saying that we've had some solar conditions the past 18 years that would explain the lack of warming?
But that said, many historic models have assumed stasis on the part of that yellow ball in the sky, and moreover the history we've inferred (not having good measurements) about the past few centuries indicates a fairly tight distribution, even including the winter after Krakatoa. So I'd hesitate to predict gloom and doom.
OK, now I see it--go figure. Don't know how that one hid, but did pretty well. At any rate, it's worth noting that around 1970, there was a local minimum which corresponded with the "new ice age" hysteria, and now there's another apparent local minimum out there that corresponds well with the lack of warming over the past 20 years.
To quote my grandmother, it's like Someone out there is telling us we're not running things.
Mr D needs to go back to making his link texts in a different color. it throws me at times, too.
actually, he doesnt need to follow any of my suggestions... i would just appreciate it if he did this one.
I'll see if I can tweak the format; when I changed to this format it made the links harder to see. Not my intent, obviously.
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