Europe’s greenest capitals

Source: press release, 9 June 2021


It’s more important than ever for the world’s major cities to establish their “green” credentials, but what exactly does that mean? Is it cutting down on pollution? Is it about winning awards? Or literally increasing the amount of green space?

Research from has looked at Europe’s capital cities to discover the greenest by looking at factors including; water quality, air quality, amount of green spaces, average annual CO2 produced per person and the percent of people using public transport, walking or cycling to work to calculate a normalised score out of 100.

Scandinavia is leading the way in eco-friendly living as they have 4 countries occupying the top 5 spaces for the greenest cities. Moreover, the top 3 greenest cities – Copenhagen, Stockholm, and Oslo – have all won the European Green Capital Award at some point in time.

With a score of 80.12, Copenhagen takes the top spot. The Danish capital has 82.3% of their residents walking, cycling or taking public transport. In second place, the Swedish capital, Stockholm takes the place. Denmark’s Scandinavian neighbour is the only other country to have more than 80% of its people using alternative methods of transport to work.

Best city for:

  • Green spaces – Ljubljana
  • Annual mean air pollutants – Helsinki
  • Water quality – Vienna
  • Percentage of people who walk, cycle or catch public transport – Berlin
  • Average CO2 produced per person annually – Berlin
  • Quality of life – Bern

Peter Earl, head of energy at comments, “With the world and its population becoming more environmentally conscious it’s more important than ever before for the world’s major cities to establish their ‘green credentials’, but green can mean different things for different people. Despite ranking highly on public transport metrics, London did not make the top ten most eco-friendly cities, scoring lower on metrics such as water quality and quality of life.”

“No matter where you live in Europe, or indeed the world, we all have our part to play in making more environmentally friendly choices and helping to keep our planet clean. For an energy customer this could mean looking for a renewable tariff or exploring ways to make your energy consumption more sustainable like using solar panels,” Earl continues.

Visit for the full research.