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However, many people are concerned about the current situation our planets. For example, they are concerned about the pollution of the seas and oceans and other environmental damage. As a result of inappropriate handling of our planet, due to greed and bad economy, the vision of a completely ruined Earth seems quite real to many. And not without reason. Some areas of our planet have indeed already been devastated by excessive deforestation or surface water poisoning. Oil spills, soil contamination, radioactive waste, smog, extinction of animal species - these are just some examples of inappropriate human handling of our planet.