This is a really great article that I wanted to share, borrowed from
E/The Environmental Magazine website. (They also have a free newsletter. See link at top of page by following link below.)
The Scoop On Dirt
Why We Should all Worship the Ground We Walk On
by Tamsyn Jones
It’s one of nature’s most perfect contradictions: a substance that is ubiquitous but unseen; humble but essential; surprisingly strong but profoundly fragile. It nurtures life and death; undergirds cities, forests and oceans; and feeds all terrestrial life on Earth. It is a substance few people understand and most take for granted. Yet, it is arguably one of Earth’s most critical natural resources—and humans, quite literally, owe to it their very existence.
From the food we eat to the clothes we wear to the air we breathe, humanity depends upon the dirt beneath our feet. Gardeners understand this intuitively; to them, the saying “cherish the soil” is gospel. But for the better part of society, dirt barely gets a sideways glance. To most, it’s just part of the background, something so obvious it’s ignored.
Even among the environmentally minded, soil sags well below the radar of important causes. But the relationship between soil quality and other aspects of environmental health is intricately entwined. What’s more, it’s a relationship that encompasses a vast swath of territory, from agricultural practices to global climate change, and from the well being of oceans to that of people.
Despite humankind’s long relationship with soil, the stuff remains a mystery. Even our language manages to maligns it. Somehow, “dirt” has acquired a bad reputation. And it’s been codified in some of our most common idioms, with people described as “dirty rotten scoundrels,” “poor as dirt” or “dirtbags.” The modern word “dirt” itself descends from the less than complimentary Old English word “drit,” meaning “excrement.” Instead of marveling at the mystery of soil, we have mocked it, by dredging and paving; desiccating and polluting; and working it to exhaustion.
Now our poor husbandry of this essential resource is catching up with us, in the form of disconcertingly rapid erosion and loss of farmland, widespread agricultural pollution, damage to fisheries, and alarming levels of pesticides and other chemicals building up in our bodies. The subject of soil is rarely billed as glamorous or sexy, but it should be. From its remarkable properties to its critical ecological importance, the dirt under our feet is a goldmine of scientific wonderment, and it’s about time people got excited about soil.
Soil is Special Stuff
Soil types vary considerably on our planet, from the hottest deserts to the coldest poles. Soil directly and indirectly affects agricultural productivity, water quality and climate. Thanks to the Earth’s soils, most of the rainfall hitting our planet is trapped and absorbed, watering plants and replenishing aquifers, rivers, lakes and streams. If soil didn’t catch and apportion this water, it would run off the land into the oceans, and the continents would be barren wastelands.
If it weren’t for the stabilizing effect of soil, ancestral plants could never have survived the fierce, raw weather of primordial Earth. Over millions of years, these plants and their offspring created the life-sustaining atmosphere required for land animals to evolve. Essentially an organ of Mother Earth, soil is a vital living system—the very skin of our planet—that nourishes the plants we eat, the animals we use for food and fiber, and the thriving underground kingdom of bacteria, fungi, protozoa, earthworms and other microbes that are critical to the planet’s food webs.
To put it another way, without soil humans would be creatures of the sea. Only about 20 percent of the Earth’s surface is covered by land. However, much of this land is too inhospitable to support our species. Only about eight percent of the planet’s soil surface is actually arable. This means, explains Wes Jackson of the Land Institute, that all six billion people living today have but a tiny fraction of soil to thank for their survival and diverse ways of life.
To read the rest of the article, click here:
The Scoop On Dirt : Why We Should all Worship the Ground We Walk On (by Tamsyn Jones)