[bigdollopenergy]

Ugh. This is really shallow analysis.

* Solar is the only form of renewable energy where this is a potential problem and there are already solutions that actually exist. Solar farms can also be vertical (look up 3D solar farms) or even on water (look up floating solar farms), which avoids this supposed land problem altogether.

* Even if we use traditional "2D" solar farms on land, space is not all equal and most of it isn't arable. With vertical farming, all that previously non-arable land is now usable for farming indirectly via solar panels. We still get desired effect of increasing our capacity to grow food in the face of shrinking available arable land, which is the whole point.

While I think this is an early technology that will be pretty niche for a long time, i'm glad it's being developed and has potential applications today. It's my view that vertical closed system farming and fusion power (for desalinization in particular) becoming practical on an industrial scale is vital for our survival as a species in the coming centuries. If the predictions on topsoil erosion and climate change are even partially correct we're going to need this technology figured out.