LEARNZ Waste not Wasted: The science of waste at Kate Valley landfill Podcast 2 of 3

The following questions from schools are answered: 1. What is the dirt like underneath the rubbish at the landfill? 2. What is the layer separating the rubbish from the ground made out of? 3. How does the rubbish at the landfill affect the natural environment around the landfill? 4. What can be done if water near a landfill gets leachate in it? 5. How do you bury the rubbish and how bad are the chemicals for the soil? 6. Why was plastic made? What will happen to all the plastic in 100 years? 7. How do you stop the rubbish contaminating the water table below the landfill? 8. How is there enough money to pay for the technology at Kate Valley? 9. How do you stop the rubbish blowing away from the landfill? 10. How much research has been conducted into landfills and their impact? 11. To what extent do you think old landfills pose a greater risk to the environment than modern engineered landfills like Kate Valley? Can anything be done to improve old landfills that have been closed down? 12. How is leachate created? Does it come naturally or just from rubbish? 13. Did you have the ability to make Kate Valley earlier or did the technology only become available recently? More at https://www.learnz.org.nz/katevalley194/connect-with-experts