I really liked the land usage discussion. That (for the US) if you took the land currently being used to grow crops for ethanol based motor fuels. Turned them into solar farms you'd cover 80% of current grid demand.
I was already pro renewables for a myriad of reasons. But that put the scale into a much better perspective.
or we could build like 200 more fission plants and rewild all that ethanol land. not really a compelling point in favor of solar land use this factoid...