What is waste? -- What are the different types of waste? -- What is liquid waste? -- How much garbage do we throw away? -- Where does garbage go after we throw it away? -- How is a landfill made? -- What is the problem with landfills? -- What is leachate in groundwater? -- What are wet landfills? -- How can waste be reduced? -- Can we burn trash? -- Is there waste in the air? -- Is land being wasted? -- What does biodegradable mean? -- Does packaging make unnecessary waste? -- Is it better to use paper bags or plastic bags? -- What are the three R's? -- What can be recycled? -- Why are people recycling less? -- What is composting? -- Waste careers -- Young scientist at work -- Take a science survey -- Fast facts.