they are using the SETI principle...using them computers, stealing bandwich, stealing memory from computer.... Alexb...u just want to save Earth? Do you? greenhouse is inevitable...humans ***** this planet, lets get on with it...there are other places to explore....Mars for example.... Want to save the planet and slow down the upcoming of the greenhouse effect? Start with yourself, dont use sprayers that got CFC's...(i think that what they are called)....dont use a car....use public transportation or even better use or invest in hydrogen car technology... In other words start with yourself...now u might ask me..."Why dont you draqon start with yourself?"...Well tell you what I dont drive a car...I use public transportation...and as soon as I will graduate and get a job Ill buy that hydrogen car or hybrid for the least...