1. Efficiency
   1. Use less energy
      1. Reduction
   2. Pollution
2. Green buildings
   1. Green Design
      1. Green Roof
   2. Designs
      1. Vertical Gardens
3. Nitrogen cycle
4. Carbon cycle
5. Green house gases
6. WHY?
   1. Increasing Population
   2. Cost of Services
      1. Land aqusition
      2. Making coal
      3. HEAT WATER
7. Water
   1. Osmosis energy
      1. Osmosis plants
   2. Water Pressure
   3. Hydraulic Power
      1. Bernoulli's EQ
8. Conversion of Energy
   1. Thermal Energy