Nokia, the world’s largest cell phone maker, said yesterday that it hoped to develop a phone with biodegradable parts within a few years. Nokia’s Salla Ahonen said that cell phone waste is increasing, with many people changing cell phones every two years and throwing out their old ones. The company has already tested biodegradable clip-on covers for cell phones, but their ability to withstand heat was not good enough (although they made excellent compost!). Nokia would also like to use more reusable or recyclable parts in its phones.