Country: Iceland

Reykjavik is the capital, largest city and cultural hub of Iceland. Its small population of around 120,000 people live in a city with bold ambitions to cut its contributions to climate change and become a world leader in renewable energy. Reykjavik has set itself the admirable target of being entirely free of fossil fuels by 2050. In terms of greenhouse gas emissions, it is already one of the greenest cities in the world.

Photo by StephanieB./Flickr.