Chemical waste produced by batteries is a one serious matter that adds up to the global threat. Almost every segment of our lifestyle is immersed into electronic gadgets like cell phones and laptops.

There are a lot of "pro-green" inventors that concentrated into finding ways and solution to reduce our garbage production. One of them is Daizi Zheng who conceptualized for Nokia a mobile phone that runs on coke. On a more technical side, the phone is able to extract energy from the soda and generates electricity because of the carbohydrate (sugar) content from enzymes that act as catalyst.

Zheng said that the traditional litium batteries are way too expensive than his invention. Well, that's because coke (any sweet soda) is everywhere (laughs). And by the way, this bio-battery can last up to four times than the traditional Li-ions.