Our very survival on this planet has many key components, yet our future may rest on the dirt we walk upon. We think that we are smart, but perhaps we are outsmarting ourselves.
Top soil that allows us to grow the food we need to survive is being depleted. We need to learn from our mistakes, so that we can sustain our own children tomorrow. To put this into perspective, note that the world's food supply is grown only on 11 percent of our planet's surface. From that 11 percent, only 3 percent is the best fertile soil. Topsoil is heterogeneous clumps, loose, and with plenty of air pockets. Yet, we outsmart ourselves by building harvesting tractors that are bigger and better. Well, they are bigger and heavier, but not necessarily better. These giant harvesters cause a compaction of the soil. Hard soil prevents roots from penetrating the ground and water flows off the rock-like soil causing erosion instead of being absorbed into the ground.
The above is just one of many problems we face toward growing food. Some estimate that by 2030 we will need 30 percent more grain than what we grow now. This blog posting isn't about all the science and problems behind this issue, this is about what we as individuals can do.
* Second, join the voices to protect current fertile soil and resurrect depleted landscapes.
Bill Lauto, GTG