The scientific definition of a Desert is "A region where evaporation exceeds precipitation", and Deserts are the byproduct of three forces;

1- Sunlight
2- Wind
3- The Oceans

These are natural processes too vast in size and scope to be affected by humanity, and yet the myth persists that "Deserts" are created by Human activity.

To fully comprehend how ridiculous the idea of "Desertification" is, one needs only examine the two primary case studies.


1- The Dust Bowl
The American Midwest is a Savannah region, which is dry, but precipitation still exceeds evaporation.

That the topsoil became dry and loose, and ultimately gave way to dust storms, is blamed in "Overgrazing".
This is not a practical mechanism, because the same grazing practices had been used for decades --- the cattle ate the grass, the fields were rained-on every year (which also held-down the topsoil), and the grass grew back.

The only change was a drought, a process produced exclusively by nature.

The claimed "solutions" to the Dust Bowl were improvements in farming and grazing practices, but what is often played-down (an sometimes totally omitted) is that the Dust Bowl just happened to end during a torrential rainfall.

Mankind doesn't make the rain either.



2- The "expansion" of the Sahara Desert

The massive destruction of crops and livestock, and significant loss of Human life in the Sahara is also blamed on the same Land Management practices that reputedly caused the Dust Bowl.

Naturally, the UN-prescribed solution is to spend a tremendous amount of money on irrigation, land management, and educational seminars to teach those "stupid peasants" that they're "doing it wrong".

What isn't mentioned, however, is that these people moved into the Southern Sahara during a period of torrential rainfalls. These were part of an alternating cycle of rainfall and drought, which are common on the edges of deserts, and normal for the Sahara.

Because little vegetation grows in the Sahara, it's extremely fertile; during said routine rainfall, it's also arable along it's edges.

In short, the Sahara didn't expand south --- it was ALWAYS THERE.

What REALLY caused the disaster was the inability of the locals to perceive that nature is not static. Otherwise, they might have prepared for lean years with adequate irrigation and/or water storage (or at least a plan to "get out of Dodge").
How much do you want to bet that such preparations aren't being taught by any of those UN-sanctioned seminars?


The lesson here is that Biology doesn't shape the Climate; the Climate Shapes Biology.