Yes, we do. Covering the ground with solar panels means that land can't be used for other things, such as farming, or natural habitat. I suppose if you want t

Yes, we do. Covering the ground with solar panels means that land can't be used for other things, such as farming, or natural habitat. I suppose if you want to just cover totally barren places like the Sahara with solar panels that would be OK, but there's political and engineering problems with that (transmitting power long-distance incurs losses, and getting power across the Mediterranean wouldn't be easy).