Today we're going to examine a subject a little more down to earth.
Soils build far more slowly than we deplete them; and the majority of human activity is soil-destroying and soil-depleting activity. Real estate development creates so much soil disruption in a single year worldwide that nature would require thousands of years to create new soils to repair the damage. We can get away with such nonsense for only just so long before it catches up with us. Many of the areas being developed are the ones with the best soils; which means that agriculture is gradually being pushed out to the margins of habitable landscapes, where it is more tenuous and requires a much greater investment in energy, time, and resources to cultivate. These marginal landscapes are, furthermore, microbially impoverished, compounding the problem.
While one can counteract the various soil deficits we create by artificially boosting plant yields using fertilizers, this practice is something like using cocaine to stimulate yourself and stay awake. It works really well, but for only just so long; eventually, a dependency arises, and the results are, in the long-term, disastrous. The tremendous proliferation of corporations who sell chemical products -fertilizers, herbicides and insecticides- to dump on lawns by the millions of tons per year are not helping any; the general public, poorly educated on soil conservation at best, is aggressively marketed with disinformation which tells them to amend their homeowner soils using clumsy, unsustainable, but—for the corporations—very "profitable" methods.