global haze proposal

i admit that i haven't spent as much time following climate change theories/proposals/issues as i should be. i'm not ignorant on the topic but i know i have a lot to learn about the topic too. i'm currently reading al gore's 'an inconvenient truth' which has a good basic overview of the current issues in very easy scientific jargon. (however it cracks me up that the book is MASSIVE....good waste of paper and over production....anyways). with the current climate change meetings in nairobi i've been learning more but also first hand experiencing climate change - it has been over 15 degrees everyday this month and tuesday was 20 degrees!!!
i was very disturbed to learn about the global haze proposal. basically if the earth's atmosphere warms too much, pollution would be deliberately put into the atmosphere to help reduce the warming. i think scientists believe this would be work becasue the sun's rays wouldn't be able to penetrate the atmosphere as much. anyone know if this is the correct logic?????? this scares me. in fact the proposal is meant to scare us. but scientists are actually thinking along these lines. have we reached the point of no return? i really hope once people from my generation start getting into high level policy making positions we can start thinking about the earth and her future.