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http://www.nytimes.com/2006/06/27/science/earth/27cool.html?_r=1&oref=slogin

dang need a login, but the first line was interesting! if we can block some sun to reduce the temperature and then use that energy to create energy!!!!

aha i'm dreaming

One of the concerns expressed is the disappearance of snow. Snow reflects sunlight away very effectively - I sunburn easier snow skiing than being out on the lake. As the Artic icecap melts, snow is replaced by water and it absorbs sunlight.

Different but related idea - why not use lighter colors for highways, parking lots, and rooftops?

Wow,I'm guessing that the 1st image-a before and after of an experiment to increase CO2 absorbing tiny one celled plants- is the Iron experiment.I remember reading about it 10 maybe 15 years ago.The claim was the iron was the rate limiting element in ocean plank. growth. The idea was to seed the ocean with iron-maybe ferrous sulfate?? I don't really remember what compound it was, but the claim was that only 16000 tons would be needed to bring about a huge decrease in CO2-one ship full.
I guess someone actually did a small experiment.
The mirrors in orbit idea sounds kinda tricky. Is there a way to get rid of them once the temps drop??
Oh well.Charlie

Would this be an apropriate time to make a joke about tin foil sun hats? Actually, that's not a bad idea...

Hi Tom:

___Is this what you are speaking of?

Dimming the Sun. (http://www.cleanmpg.com/forums/showthread.php?t=572)

___Good Luck

___Wayne

I was alluding to it. But the article delt with putting reflectors in orbit to block some of the suns rays.

There is documented evidence that the sun, along with many other similar stars, exhibit periodic changes in energy output. The sun is a very long period variable star that actually expands and contracts slightly over a given period of time. Also, during the sunspot low period (every 11 years, we are at sunspot minimum now) solar output is reduced. During sunspot max periods (we have to wait another 11 years) solar output increases. Whether or not this affects the earth's climate is debatable. Maybe we could figure out a way to create a bubble of opaque material to surround the earth that would block some of the sun's energy (will never happen imo). Ooops, then all the photovoltaic, earth based astronomers, and solar panel people would complain...:eek: