Numerous smart city projects are emerging, guided by objectives of efficiency and improvement of public policies. All of them are based on intensive use of data and digital tools, but their concrete achievements take various forms. Some models are being exported and are becoming levers of influence, while Europe is still looking for its own path.

Urbanization is a relentless trend, and as cities grow and expand, armed conflict and violence are urbanizing as well. 

The Global Climate Action Summit held in September 2018 in California has highlighted the importance of cities for promoting clean energy solutions and for combatting climate change. While energy policies in most countries depend primarily on national governments, cities have the possibility to develop and implement innovative solutions and ambitious policies. Chinese cities should be at the core of these developments, as they are confronted with many energy and climate challenges, often at an unprecedented scale: notably air quality, traffic congestion, energy security and massive consumption of building materials. For instance, outdoor air pollution in China has reportedly caused 1 million premature deaths in 2016, and in 2014 only 8 out of 74 Chinese cities would meet the national standards in terms of air quality.

The Indian government has launched the Smart Cities Mission in June 2015 with the aim of providing a better quality of life to the citizens in 100 cities of the country. This paper describes the main features of the Mission and attempts to explain the challenges in the way forward.