Extensive changes in land surface properties, such as converting vegetation to desert, modify surface albedo and radiation balance, which significantly impacts regional and global temperatures.
The claim posits that converting all landmass to desert would significantly alter Earth's global average temperature. Retrieved papers such as [0], [5], and [7] provide evidence that land cover changes, vegetation alterations, and shifts in surface properties like albedo and dust mineralogy substantially impact surface energy balance, radiative forcing, and land surface temperatures. There is no evidence refuting the premise that large-scale land cover changes affect global temperatures.