Another major environmental concern is how to safely dispose of our waste. Factories generate enormous amounts of highly toxic waste, the disposal of which is often difficult and expensive. The illegal dumping of waste is a problem in many parts of the world. However, we cannot simply point the finger at big businesses. How much trash do you throw away every day? Do you know where it all goes? We, as consumers, contribute to pollution by buying and throwing away more and more things. One example is the trash that can be seen in parks and other public places because of our careless disposal of things like cans, bottles and plastic containers. A large percentage of industrial, commercial and domestic waste is collected and buried in areas known as landfills.Although this may sound like an effective solution, it is actually a source of land, water and air pollution. Landfill waste may contain acids, pesticides, chemicals and other toxic substances. Over time, these pollutants can leak into surrounding soils and the groundwater that we eventually drink.