* slight injections of sun-blocking particulates into the upper atmosphere would immediately erase all Earth warming of the past 200 years. Teller estimated the cost to achieve this cooler temperature at about $1 billion. A similar additional amount would probably be required annually to maintain the cooling. [http://hypsithermal.wordpress.com/2008/08/31/assault-on-reason-by-expert-al-gore/] | * slight injections of sun-blocking particulates into the upper atmosphere would immediately erase all Earth warming of the past 200 years. Teller estimated the cost to achieve this cooler temperature at about $1 billion. A similar additional amount would probably be required annually to maintain the cooling. [http://hypsithermal.wordpress.com/2008/08/31/assault-on-reason-by-expert-al-gore/] |