As a green society we need to be able to recycle as much as we can and pollute less. We are getting close to being able to get sustainable technology and a way to power it that is not reliant on power that only ends up in landfills. The best way currently other than use Photovoltaic cells is rechargeable batteries. Gizmodo has a nice little article on where science is in creating a long term use rechargeable battery. We are so close!