Globalwarming Awareness2007

Many Scientists have researched upon how to lower down Globalwarming . Today they have found many ways to do reduce the rate of Globalwarming. The big thing is that Globalwarming Awareness among the people can help the earth as well us . University of Arizona astronomer Roger Angel discovered that putting sunshades in space and has detailed his idea in a paper i.e. “Feasibility of cooling the Earth with a cloud of small spacecraft near L1” in the Proceedings of the National Academy of Sciences. Giving suggestion he told that launching a constellation of trillions of small free-flying spacecraft a million miles above Earth into an orbit aligned with the sun, called the L-1 orbit

He given many example to demonstrate like this spacecraft would form a long, cylindrical cloud and would have a diameter about half that of Earth, and about 10 times longer. It is suggested that about 10 % of the sunlight passing through the 60 thousand mile length of the cloud, pointing lengthwise between the Earth and the sun, would be diverted away from our planet. This may result in gradually reduced sunlight by about 2% over the entire planet and would balance the heating of CO2 in the atmosphere of earth

James Early of the Lawrence Livermore National Laboratory first mooted the use of space shade in 1989.

He produced many ideas to show the world what he knows, what he though in the past was bigger idea, huge volume of structures that would have needed manufacture and launch from the moon, which is pretty futuristic." Angel said. "I wanted to make the sunshade from small 'flyers,' small, light and extremely thin spacecraft that could be completely assembled and launched from Earth, in stacks of a million at a time. When they reached L1, they would be dealt off the stack into a cloud. There's nothing to assemble in space."

At the movement Angel ready to made lightweight flyers, which can be made of transparent film pierced with small holes, and the great thing is it would be two feet in diameter, 1/5000 of an inch as well as thick and weigh about a gram, lastly the same as a large butterfly. Again giving suggestion by him that Used of “MEMS” technology mirrors as small sails that tilt to hold the flyers position in the orbiting constellation.

Weight would be of all flyers proximately be 20 millions tons. But the key is system of conventional rocket launching at $10,000 a pound slightly high than any other would be too prohibitive. Alternate, which he showed, up would cost only around $20 a pound.

One of the suggestions from many given by him is deploying a total 20 electromagnetic launchers launching a stack of flyers the figure is every 5 minutes for 10 years. There are may options for this but among them one is electromagnetic launchers would use hydroelectric power but even if it uses coal-generated electricity, each ton of carbon used would reduce the effect of 1000 tons of atmospheric carbon.

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