Sustainability & Sustainable Cities
Water conservation
Desalination
The process by which the dissolved mineral salts
 in water are removed.
Fresh water for human
 consumption , agriculture, fish breeding
NEWater
Sustainable strategy, produced from treated used
 water that is further purified using advanced
 membrane technologies and ultra-violet disinfection
Renewable Energy
Solar energy
Solar panels can be 
used to produce energy
Electricity
Food
Waste
Food waste accounts for 12% of the world's total waste
Composting the food can help reduce the waste.
Food Security
Due to global circumstances (Big daddy Russia)
food security has been more and more important
to ensure everyone on earth has enough food to survive
Globalization
MNCs
Companies expanding into other countries 
may cause pollution due to factories , or waste 
not being properly disposed of.
Environment
Pollution
Wastage, plastic etc.
excessive incineration, greenhouse emissions 
Produces greenhouse gasees
Carbon Emmisions
From factories etc.
Deforestation
By cutting down trees , less carbon dioxide is turned into
oxygen , so there is more carbon dioxide to trap heat in the environment.