It’s all about connection. This is the key to making a city “smart”, say the smart people working on the subject. And by “connection”, they mean not only the technological kind but especially the human one.

Domestic efforts play an important role in curbing global warming. Besides producing and using renewables, homes can also act as banks that store CO2 .

Energy efficiency has become a key objective in the current context of increasing energy demand, decreasing resources and global warming. Key to efficient energy savings, however, are users' awareness and behaviour.

The building sector has become much greener. To get such credentials it has adopted methods borrowed from other industries, such as life cycle analysis ( LCA ), which looks at the environmental impact of a building at every stage from its creation to its decommissioning.