WATER
- Efficient use of water
- Management of water
- Water suply
- Effluent treatment
- Depuration
- Water policy
WASTE
- Municipal waste management
- Solid urban waste management
- Industrial waste
- Administration and corportation waste management
- Medical waste management
- Dangerous wastes management
- Agricultural waste management
- Technologic waste management
- Inert waste management (construction)
- Alimentary/organic wastes management
- Treatment of wastewater and storm water
- Recycling
- Converting waste to energy
- Converting waste into fuel
- Waste management policies
- Ecologic design
- Industrial ecology
- Archtecture, urbanismo and ecologic landscaping
ENERGY
- Renewable energies
- Energetic installations
- Management of energetic projects
- Management of other energy sources
- Ecologic design
- Industrial ecology
- Architecture, urbanism and ecologic landscaping