We’re running out of dirt…..
A recent study shows that we are losing the earth’s topsoil faster than mother nature can make more.
The earth only has an average of 3 feet of topsoil covering it and it’s responsible for growing most of the world’s food.
“Globally, it’s clear we are eroding soils at a rate much faster than they can form,” said John Reganold, a soils scientist at Washington State University. “It’s hard to get people to pay much attention to this because, frankly, most of us take soil for granted.”
David Montgomery, a scientist who has written Dirt, The Erosion of Civilizations, makes a case that “… it’s pretty clear we’re running out of dirt.”
As this becomes more and more of a problem, landscapers will find that reclaiming topsoil using topsoil screening machines on job-sites will be much more cost effecient than bringing in new soil to lay down. Keeping topsoil in place is an important component to fighting the problems of topsoil erosion.