The document discusses the pollution of the world's land, air, and water caused by overpopulation, pollution, and energy consumption. This pollution has led to problems like deforestation, ozone depletion, and global warming. The seas are also threatened as they are filled with industrial waste, chemicals, and oil, putting some seas at risk of extinction. Harmful emissions from industry have disastrous effects through greenhouse gas emissions and acid rain. However, the document argues that environmental disaster can be avoided if people take action against pollution and nature protection becomes a priority.