The global challenge of climate change grows bigger every day. In the meantime, there is scientific evidence that generating and using energy in the cleanest, most efficient way is a matter of survival. Renewable energy sources will need to play a major part in Jordan's future energy mix. Investing in clean energy also includes upgrading the old inefficient and greenhouse gas emitting power plants and increasing energy efficiency on all levels. In addition, the role that cities have – some of the largest energy consumers – will need to change and transform into sustainable models of urbanization. In future, the urban design of cities must enable people to thrive in harmony with nature and achieve sustainable development. Cities, towns and villages should be designed to enhance the health and quality of life of their inhabitants and maintain the ecosystems on which they depend.