Joseph Lofthouse wrote:I believe that a desert currently exists in the Sahara because of the precession of Earth's poles. Under that model, we can expect the Sahara to turn from swamp to desert, and back again about every 23,000 years.
https://en.wikipedia.org/wiki/North_African_climate_cycles
Using only that model in wiki would make sense but does that model consider monocultures increase over the last 10,000years and significant increase over the last 200 years, along with the industrial revolution obviously. Are deserts growing at an exponential rate
due to monoculture agriculture and a dependency on annual crops? Deserts obviously have a place and function but the rate of growth does not fit into a natural ecological model.
