A big insight into how misdirected our efforts are. PS. You know who figure out an efficient way to make aerogel? (A foam like substance with amazing insular properties?) NASA. The people that come up with these sorts of things deserve that money to work with instead.
Here is a link to a store where you can buy aerogel to give you an idea how cheap (even fancy) solutions to this issue can be. http://www.buyaerogel.com/