"Our Endangered Dirt"
Published in the Namib Times, 15 March 2013.
By Marcia Stanton
Our soil is
endangered. Some 40% of soil used for agriculture around the world is
classified as either degraded or seriously degraded – meaning that it is nearly
impossible for plants to grow on that land.
The World Economic Forum has demonstrated that if current rate of soil
damage continues, we have only about 60 years of topsoil left in the entire
world.What does it matter? In short, soil produces food and we cannot live without food for more than 3 weeks. Soil is a critical building block to all life on land and it enables plants to grow. We and other species depend on plants for food, oxygen, habitat, medicine, and regulation of the water cycle and climate.
Although we need soil for our survival, we do things to the soil which make it unusable and damage our health. We pollute and damage soil by mining, using pesticides and chemical fertilisers (phosphate and nitrate), and disposing of oil, fuel, coal ash, industrial wastes, and garbage. This pollution causes food to be tainted with toxic substances, resulting in health problems. Long term health effects include cancer as well as brain, skin, nervous system, and gastrointestinal tract damage amongst others.
Industrialized food production has also lead to additional soil loss. Although food production initially increases with the use of industrial techniques, this practice is unsustainable and causes long term damage to soil. Heavy reliance on pesticides and fertilizers such as chemical phosphate and nitrate has contaminated the soil, diminished soil quality and weakened the land.
In Namibia, our Constitution calls on us to maintain a sustainable environment for current and future generations for a reason. Without the environment, including the dirt beneath our feet, we cannot live.
No comments:
Post a Comment