Methodology

Each metric uses the latest data available from trusted sources, and is standardised using min-max normalisation:

This results is a score between 0 and 10 for each data point and each city is ranked based on its average overall score.

The index uses both city and local authority data. For local authority-level data the score is applied to the city within it. For example, if Brighton & Hove council has a score 5.65 for CO2 Emissions, then Brighton receives 5.65.

In order to make the data as reliable as possible, cities missing 2 or more data points (due to no data available) have been removed, leaving a final list of 52 cities from the total 68 cities in the UK. Where appropriate data was also adjusted to take into consideration the population of each area.

CO2 Emissions

UK local authority & regional CO2 emissions per capita 2016 (includes commercial, domestic and transport emissions).

CO2 emissions - national statistics

Energy Consumption

UK sub-national energy consumption 2016 (includes all fuels; coal, manufactured fuel, petroleum, gas and electricity). Energy consumption is adjusted for the population.

Energy consumption - national statistics

Air Quality

Crowdsourced data of perceived pollution and air quality levels in each city. Where data was not available, the nearest location within 15km as the crow flies was used.

Numbeo pollution index

Fly-tipping

Number of reports for fly-tipping incidents by local authority. Data has been adjusted for the population.

Fix my street - Fly-tipping reports

Litter

Number of reports for rubbish, street cleaning, dog fouling and littering by local authority. Data has been adjusted for the population.

Fix my street - litter reports

Green Space and Parks

Crowdsourced data of the perceived quality of green space and parks in each city.

Numbeo pollution index

Nature Reserves

Number of nature reserves within a 10-mile radius of the city centre.

Wildlife Trusts - Nature Reserves

Electric Car Charging Points

Number of electric car charging points within a 5-mile radius of the city centre.

Open charge map

Traffic Congestion

Road congestion statistics

Congestion on local roads

The UK's
Greenest Cities

How green is your local city?

Most of us like to do our bit to help the environment. From cycling to work to switching to biodegradable products, we’re becoming more conscious of our actions. But can we say the same for our cities?

Here at The Solar Centre we decided to find out.

We’ve looked at 52 cities across England, Wales, Scotland and Northern Ireland and ranked them against 10 key eco-friendly metrics like CO2 emissions, recycling, and the quality of green parks.

Durham was crowned the UK’s Greenest city, followed closely by Newcastle upon Tyne and Swansea.

Total
Pollution
Waste
Nature
Transport
Rank
City
Air Quality
1
Durham
7.18
4.69
7.46
10
4.98
8.49
9.33
9.33
5
2.53
10
2
Newcastle
6.86
4.83
7.78
6.61
4.46
9.13
8
7.78
7
9.12
3.93
3
Swansea
6.67
4.88
7.88
6.12
7.16
9.04
8.73
10
5.33
0.88
-1
4
Coventry
6.62
5.23
8.35
5.64
3.13
8.88
9.19
6.11
9.33
3.3
7.01
5
Worcester
6.6
5.39
8.51
3.21
3.86
9.94
9.61
-1
9
0.66
9.24
6
Inverness
6.55
10
5.17
9.35
6.13
9.76
9.55
8.33
0.33
0.33
-1
7
Nottingham
6.5
5.33
8.47
2.76
7.75
8.38
8.08
6.25
10
5.6
2.38
8
Belfast
6.46
5.01
10
6.55
6.1
10
9.91
6.67
1
2.86
-1
9
Salisbury
6.42
4.11
7.04
6.12
6.17
9.89
9.75
7.78
3
0.44
9.85
10
Chelmsford
6.41
4.55
7.53
5.15
8.31
9.29
9.59
6.67
4
0.22
8.78