Green energy requires the use of scarce resources, just as fossil fuel energy does. We must rapidly come to terms with this. This article gives us an example. By 2050 we may not only have reached peak silver; we may have consumed most of the world’s reserves. Silver is a very good conductor. So it performs very well in solar panels. We may not burn the silver, but we certainly consume it. And of course, it has to be mined as well. Silver mining may be cleaner than coal mining, but, for those who live in the vicinity, it’s still mining.