The Spanish capital with a roughly population of 3.3 million is the largest city in the country. The entire population of Madrid metropolitan area is about 6.5 million (population density 3,595 people/km2) and it is known to be the third-largest city in the EU. The city spans a total of 605.8 km2 whereas metropolitan area covers 5,335.97 km2 (twenty surrounding municipalities). Madrid is the hub of political, economic and cultural activities in Spain and due to its economic output, high standard of living, and market size, Madrid is considered to be the major financial centre of Southern Europe.
Madrid region experiences a Mediterranean climate with cool to cold winters due to its altitude of 667m, including sporadic snowfalls and temperatures often below freezing. Summers are warm to hot with average July temperature ranging from 31°C to 33°C. Madrid has high number of trees and green surface per inhabitant: 293,356 units in 6,480 m2.
Madrid implements a sustainable energy and climate change policy. Promoting efficiency, diversification and renewable energy are the three main axis of this policy. In 2008 the Madrid City Council approved the city plan for the Sustainable Use of Energy and Climate Change Prevention, setting a total GHG reduction target of 20% reduction by 2020 (direct and indirect emissions). This Plan is currently being reviewed to implement additional measures to achieve this target.