Originally Posted by Dravin
Green tea has caffeine in it, it's just dwarfed by what you'd find in an energy drink. See here for instance: Caffeine content for coffee, tea, soda and more - MayoClinic.com
The range is due to a variety of factors such as brew time, but at 24-40mg per 8 oz it's on par with Pepsi on the low range and just a bit more than Mountain Dew on the high.
Interesting, I actually thought green tea had less caffiene than that, add enough sugar and it's already looking nearly as bad as a pepsi. Now I'm wondering how much sugar pepsi has compared to say, liptons lemon flavored green tea (which would be the least sweet kind I can come up with off the top of my head)