Solar cells can be made with tin instead of lead, scientists find - "There is now an urgent need to tackle the threat of climate change resulting from humanity's over reliance on fossil fuel, and the rapid development of new solar technologies must be part of the plan." • /r/worldnews

Solar cells can be made with tin instead of lead, scientists find - "There is now an urgent need to tackle the threat of climate change resulting from humanity's over reliance on fossil fuel, and the rapid development of new solar technologies must be part of the plan." (techxplore. via Pocket http://ift.tt/2fGsZpl