I don't think even using baby whale fat would be as damaging to the environment as this Bird Electron invention: a MacBook charger that uses eight C batteries, huge, heavy C batteries that people used in radio boom-box, remember?
Well, let's see how smart this accessory is. It costs about $ 290, weighs just over 1 kg (without batteries; with it, the weight exceeds 1.5 kg) and provides two extra hours of use on an 11-inch MacBook Air.
Oh, and you still need to have a MagSafe Airline adapter, which is sold separately for $ 50.
Is there any reason for something like this? Worst of all: the end of the world. When you're in the middle of nowhere, feeling (and probably being) the last human being alive, this accessory will be the only thing uniting you with all your happy iPhoto albums. That is, if you can find eight charged C batteries.