We told you Lenovo's ThinkPad team was up to something, and two days earlier than its predicted Earth Day launch, the ThinkPad L Series has been released into the atmosphere. While it may look like the ThinkPad R Series -- which it will eventually replace -- Lenovo says the 14-inch L412 and 15-inch L512 are the greenest ThinkPads ever made. Besides being 40 percent more power efficient than "other laptops," they're partially made from recycled office water jugs and miscellaneous used equipment. If all that green stuff doesn't stir your soul, the L Series has the standard ThinkPad chassis and can be specced up to be a pretty solid mainstream business system -- it'll be available with Core i3 or i5 CPU options along with integrated or ATI Radeon graphics. For those with a bit less cash to spare, an entry-level $649 model is equipped with a Celeron P4500 CPU, 160GB hard drive and 1GB of RAM. Pricing on the higher end models remain ambiguous, but these puppies should be available for pre-order on Lenovo's site soon enough, and then ship in what we expect to be very eco-friendly packaging early next month. Until that fateful day arrives, feel free to enjoy the gallery and press release below.