Interesting Question - How much tea needed to make the Great Lakes into tea?

XKCD is one of my favorite web-based comics. They have a side-venture that explores “what if” questions. This one covers the question “what if you took all of the world’s tea and dumped it into the Great Lakes of Michigan?” It discusses the strength of the tea and then figures out which lakes would make better candidates. Very cool!
http://what-if.xkcd.com