1. Air
   1. Acid Rain
   2. Asthma
2. Bed Bugs
3. Flooding
   1. Dam
   2. Resources
      1. Reservoirs
         1. How NYC gets water
            1. Water tunnel
4. Environmental Related Diseases
   1. Cancer
      1. X-rays
      2. Microwaves/Radioactive
         1. UV rays
5. Recycling
   1. Composting
6. Green
   1. Ecofriendly
   2. Solar
7. Toxic
   1. Everyday items
8. Water Sampling
   1. pH testing
   2. Testing Contaminant
   3. Disease
9. Materials Manufacturing
   1. Materials & Medicine
   2. Plastics
   3. Nylon
10. Humans & Environment
    1. Pollution
       1. Green Energy
          1. Verdent Power Turbines
    2. Global Warming