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On this page it explains what are the causes, effects and solutions.
Solutions that we can do to reduce pollution are mentioned, the solution is also in our hands.  We will be responsible for what happens in the future.

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What is Soil Contamination?

Soil contamination refers to the destruction of land that could be used constructively by human activities, either directly or indirectly. Presently, 300,000 ha of UK land is thought to be contaminated by toxic elements such as lead and arsenic. The same goes for the other industrialized nations which are the worst hit. The developing countries are also steadily but surely moving toward this direction.This should be cause for great concern considering the devastating effects soil pollution brings to the environment.

Causes of Soil Contamination

Soil pollution is mostly caused by mindless human activities such as:
Industrial waste
Industries are by far the worst polluters of the soil with all the chemicals they release into the environment be it in liquid or solid form.
Deforestation
Clearing of trees leaves soil exposed to the elements so they are easily carried away by soil erosion. This leaves land barren and incapable of supporting vegetation.
Excessive use of fertilisers and pesticides
The increased demand for food has forced farmers to use fertilisers and pesticides that release nothing but toxins into the soil, killing useful microorganisms that are important in plant growth.
Garbage pollution
Garbage that cannot be recycled is disposed of carelessly and this is not only an eyesore but pollutes the land. Some of this waste can literally take thousands of years to decompose!

Effects of Soil Contamination
Climate change
Deforestation causes a change in the rain cycle and this is a contributing factor to global warming and loss of ecosystems.
Loss of soil fertility
With the rapid growth of human population, we need all the food we can get. Chemicals used on soils reduce soil fertility so food production drops.
Impact on human health
Countless deaths have been caused by human beings ingesting foods that are grown in toxic soils.

How to Reduce Soil Contamination
Reforestation
Most countries have policies that require its citizens to plant more trees where one has been cut. This is an effective measure to curb soil erosion. Governments should also take punitive action against those who cut down trees without a care in the world.
Controlled farming practices
Too much of anything is dangerous. The same concept applies to farming practices in that they should be carried out in moderation. Practices such as overcropping and overgrazing should be avoided since they increase soil erosion.
Bioremediation
This is the introduction of microorganisms into the soil that break down contaminants. This is a perfectly environmental friendly approach since it allows nature to take its course thus restoring balance.
Reduce, Recycle, and Reuse
Items that can be used again should not be disposed of; things made of paper, glass, aluminum and the like should be recycled; lastly, where excesses such as the use of polythene paper can be avoided, then, by all means, reduce their use.
Use biodegradable products
Where possible, opt to use biodegradable products such as cartons for packaging; if they were to be disposed of, they would easily be broken down to become part of the soil.
Reduce the use of pesticides and fertilisers
Pesticides and fertilisers are major contributors to soil contamination so cutting down on their usage could do a world of good to the soil.

We have one earth and if we completely destroy its surface, we will be the first to starve or poison ourselves. Redeeming land to its original state is nearly an impossible task. It'll require altering its properties which can be avoided if only we put our land into its proper and responsible use.

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Soil Contamination: Its Causes, Effects, and Solutions - The Permaculture Research Institute

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What is Soil Contamination? Soil contamination refers to the destruction of land that could be used constructively by human activities, either directly or indirectly. Presently, 300,000 ha of UK land is thought to be contaminated by toxic elements such as lead and arsenic. The same goes for the o

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The economy has a lot to do with soil pollution, since different things are bought with money, such as garbage bags, cans to separate garbage, it is also invested in trucks that collect garbage, among many more, so  that the economy is of great help to reduce pollution.

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Technology is another way to reduce soil pollution, today technology can be of great help for these problems. The government of each country will have to find solutions that are effective.

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The infrastructure can really damage the soil, but to avoid it, methods will have to be implemented, so that the works do not affect the soil, or simply avoid unnecessary construction.

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This page shows different solutions for soil contamination, many of these are very useful.

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Soil pollution has many sources, from agriculture to industry to human activity. Polluted soils affect harm life and, in turn, wildlife. Depending upon the polluting agent, pollutants can persist in the environment. Solutions, therefore, involve not just removing a source of pollution but also cleaning up and restoring the polluted area. Adding to the complexity of soil pollution is nonpoint source pollution (NSP), which enters the environment through runoff. Take any action at your disposal to reduce soil pollution, as you may not always find a clearly defined source.

Reduction of Acid Rain

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Sulfur dioxide emissions can cause acid rain and forest destruction. Fortunately, the introduction of scrubbers on smokestacks of coal-burning power plants has produced some progress in this arena. The U.S. Environmental Protection Agency (EPA) reports a 71 percent decrease in sulfur dioxide concentrations from 1980 to 2008. Help solve the problem by contacting your legislators and asking them to encourage development of alternative fuel sources. In the home, conserve energy use; the less you use, the less pollution ends up in the air and soil.

Reduce Waste

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Consider the amount of needlessly generated waste. According to the Clean Air Council, almost one-third of the waste in the U.S. comes from packaging, with an additional five million tons generated during the holiday season. Chemicals used in paper manufacturing can end up in the soil. Choose wisely when shopping; avoid purchasing products with excessive packaging. Reuse holiday wrap, or cut down on the amount you use.

Agriculture Best Practices

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The EPA has identified agricultural runoff as the primary source of water pollution. Runoff contains pesticides, fertilizers, and agricultural waste that can have harmful effects on soils. Excessive amounts of phosphates, phosphorus and nitrogen found in fertilizers can cause fish and plant kill, resulting in contaminated soils. Use organic herbicides when gardening, or none at all. Plant native plants, which thrive in local conditions, often making pesticide use unnecessary.

Wetland Restoration

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Help restore polluted wetlands. A single acre of wetlands can hold more than of one and a half million gallons of water, which runoff can taint, eventually leading to soil pollution. Work to restore wetlands and reduce NSP. Support local conservation efforts by donating to or volunteering with organizations such as The Nature Conservancy that purchase land for restoration.

Reduction of Human Impact

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Finally, simply reduce your negative impact on the environment. Despite educational efforts, the average American generates more than four pounds of trash daily, more than seventy percent of which ends up in landfills, where toxins leach into the soil. Recycle whenever possible to help ease soil pollution. Use cloth bags instead of paper or plastic at the grocery store, and substitute polycarbonate bottles for plastic water bottles.

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Soil pollution has many sources, from agriculture to industry to human activity. Polluted soils affect harm life and, in turn, wildlife. Depending upon the polluting agent, pollutants can persist in the environment. Solutions, therefore, involve not just removing a source of pollution but also cleaning up and restoring the polluted area.