The World Bank estimated that about 2.01 billion tonnes of waste are produced each year and it is expected to reach 3.40 billion tonnes by 2050. It is even sadder to know that much of that waste goes unrecycled. Among all the garbage people throw away, 75% of the solid waste can be recycled, but only 30% is recycled. Many people aren't aware of the harmful effects of improper dumping. Garbage causes air pollution by releasing gasses and chemicals.