In soils we inject all kinds of toxic and harmful substances. We introduce fertilizers, pesticides, pesticides, solid waste, heavy metals, radioactive contaminants. Acid rains return toxic substances to the earth. We inject pollutants into agricultural and livestock soils, mining camps, plains, mountains, forests, beaches, glaciers or deserts and even our small gardens. There are few spaces in the planet’s soils that remain virgin, that is, with pollution-free surfaces.

Then we have oil spills on land due to broken pipelines and poor well management. Not even the Amazon rainforest has been saved from oil exploration and exploitation. In recent times, fracking began to be used, a non-traditional method of extracting hydrocarbons at great depths. The hydraulic fracturing is very questioned by the environmentalists for the risks that it contains. During the process, up to 600 chemicals are used to release gas and oil from shale rocks. These substances can contaminate the aquifers located under the ground, as well as the substrate that nourishes the plants.