Wednesday, July 11, 2007

Sun Not Responsible for Global Warming

In yet another blow to climate change 'skeptics', a newly released study demonstrates that global temperatures are rising at an accelerating rate despite the fact that the sun's output has been decreasing since 1985.

The study not only delivers a blow to deniers arguments, but to their credibility as well. For the past decade, a well funded strategy of public relations spin and unsupported claims have been the backbone of skeptics' attempts to derail efforts to fight global warming.

With the solar argument now put to rest, skeptics will be scrounging for a new angle. Watch for it in the coming months.


Manuel said...

Does this study include the years of time it takes that lack of energy from the sun to reach us? or are we still feeling the affects of when the sun was in an active state?

Steve V said...

"In yet another blow to climate change 'skeptics'"

They can sure take a punch. I'm sure they will find something else to gravitate towards. I often wonder how people will look at this "debate" 100 years from now. I suspect these people, who refuse to acknowledge anything, will be looked upon with complete disdain. There are serious debates, this in no longer one of them.

Joao Soares said...

Greetings from Portugal: an enviroactivist and editor of BioTerra.

Lord Kitchener's Own said...


Isn't radiation from the sun just a form of light, at different wave langths? Someone correct me if I'm wrong, but I'm pretty sure cosmic rays travel at the speed of light. In which case, does it take "years" for those rays to get to us? 'Cause I'm pretty sure the Sun is about 8 light MINUTES away.

Though, I may be missing something, so someone fill us in please!

Now, even that being said, there may be some lag between when an increase or decrease of activity occurs and how long it takes that increase or decrease to have a tangible effect on global temperatures (which I'm pretty sure a peer-reviewed article would take into account). So, it may take some time for the change in activity to have an effect on earth, but it DOESN'T, I don't think, take years for the change to "reach us".

Odiyya said...

That is my understanding as well Lord K. Here's the link and soundbite backing up your comment:

"The distance from the Sun to the Earth is 150,000,000 km. All light waves travel at a speed of 300,000 km/s. So, the time for light to reach Earth from the Sun is

time = distance divided by speed = 8 and 1/2 minutes

If the Sun was to turn itself off right now we wouldn't know about it for another 8 and 1/2 minutes!"

E. R. Dunhill said...

Your reasoning is sound. Light comes in a variety of flavors: radio, infrared, visisble, UV, x-rays, gamma rays, &c. While they have different wave-lengths, they travel at the same speed, when unhindered. That speed, the universal speed limit, is about 186,000 miles / second. It is indeed about 8.5 light minutes from the surface of the sun to the surface of our little rock.
That said, it can take a great deal of time for radiation to reach the surface of a star from its interior. Some stellar models describe subsurface cycles that will ultimately affect the amount of radiation emerging from the star's surface, but this radiation can be a long time in coming.

Neutral Existence said...

Well the "Sun Causes Global Warming" argument was just a ploy to attempt to rid oneself of any responsibility for the current state of our environment.
We need to stop global warming now before it is too late.

angry truck driver said...

you cocks have got no idea. most skeptics don't have a prob with global warming its happening. but it has sweet f#(k all to do with human co2 emissions. 1 volcano produces more co2 in 1 eruption than the amount of co2 human have produced since they started having fires. tell me how we have an impact?