Actually you are missing a couple points.
Sounds like you have never been o the Mojave. It is not all sand. It is a variety of substrates. Sand covers only a small part of it. A small fraction. Not all reflective.
Plus the main point was about plant matter obsorbing carbon. The most common desert plant community that these green energy eco raiders want to destroy is creosote/bursage. If one were to analize the amount of biomass in one acre of this ecosystem, one would find it compares pretty good to a grassland or just anout any other temperate ecosystem. They want hundreds of thousands of acres. That would increase much carbon ii to this planet. The only green in such energy proposals is $$$...
