Ranked: most sustainable countries in the world

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Denmark tops the ranking of the most sustainable countries in the world according to the latest data from the Environmental Performance Index

The Environmental Performance Index (EPI) evaluates and ranks 180 countries on 40 performance indicators across 11 categories covering environmental health and ecosystem vitality.

The aim is to gauge, at a national scale, how close countries are to meeting the environmental policy goals outlined in the United Nations 2015 Sustainable Development Goals (SDGs) and the Paris Climate Agreement.

What is the Environmental Performance Index?

The EPI has been running biennially since 2006. It was preceded by the Environmental Sustainability Index (ESI), published between 1999 and 2005. Both were developed by Yale University and Columbia University in collaboration with the international non-governmental World Economic Forum and the Joint Research Centre of the European Commission.

Wind turbines above a green field
westudio/Shutterstock The EPI assesses if countries are meeting their environmental goals

The EPI report has become the world’s premier framework for global environmental policy analysis. The report is compiled every two years using the following categories to create an EPI score out of 100 for every nation.

  1. Climate Change
  2. Air Quality
  3. Sanitation & Drinking Water
  4. Heavy Metals
  5. Waste Management
  6. Biodiversity & Habitat
  7. Ecosystem Services
  8. Fisheries
  9. Acid Rain
  10. Agriculture
  11. Water Resource

The report found that global progress to reduce greenhouse gas (GHG) emissions remain insufficient to meet the net-zero GHGs by the mid-century target established in the 2021 Glasgow Climate Pact.

A map of the most sustainable countries in the world
EPI Mapped: the most sustainable countries in the world

Using emissions trajectory from the last 10 years as a basis for projecting 2050 emissions, the EPI researchers forecast that the vast majority of countries will not achieve the net-zero goal. A number of nations – including the USA – are projected to fall far short of the target.

“Major countries have much more work to do than they
may have realized if the world is to avoid the potentially devastating impacts of climate change.”

Martin Wolf, EPI Principal Investigator

Only a handful of countries – notably Denmark and the UK – are presently projected to reach GHG neutrality by 2050. The countries performing well on the net-zero GHG in 2050 metric have enacted some of the world’s most ambitious climate policies.

10 most sustainable countries

Denmark is the most sustainable country in the world. Denmark has set a national target of reducing 2030 emissions by 70% compared to the 1990 level and has adopted an exhaustive policy agenda to deliver on this commitment, including recently expanded GHG taxes.

Denmark is the greenest country in the world
Sina Ettmer Photography/Shutterstock Denmark is the most sustainable country in the world

Other high-scoring nations include the UK and Finland, both of which scored well in the climate change category, their performances driven by policies that have substantially cut GHGs in recent years. Sweden and Switzerland, also among the top countries, performed well in terms of air and water quality.

  1. Denmark
  2. UK
  3. Finland
  4. Malta
  5. Sweden
  6. Luxembourg
  7. Slovenia
  8. Austria
  9. Switzerland
  10. Iceland

Lagging behind its peers, the USA was ranked 43rd. This relatively poor performance reflects inaction in Washington on critical issues such as climate change; the rollback of environmental protections during the Trump administration; and the country’s temporary withdrawal from the Paris Climate Agreement.

Climate demonstrators in the US ranked the 43rd most sustainable country
Sundry Photography/Shutterstock The USA performs poorly compared to other industrialised nations

While the data suggests the USA is improving air quality and marine protected areas, the ranking still puts it behind most industrialised Western democracies, including France (12th), Germany (13th), Australia (17th), Italy (23rd) and Japan (25th).

10 least sustainable countries

India is the least sustainable country in the world. Generally, the lowest scores went to countries struggling with civil unrest and other crises (such as Myanmar or Haiti) or nations that have prioritised economic growth over environmental sustainability, such as India, Vietnam, Bangladesh and Pakistan.

Delhi in thick smog one of the least sustainable countries
Amit kg/Shutterstock Delhi in India is the world’s most polluted capital city
  1. India
  2. Myanmar
  3. Vietnam
  4. Bangladesh
  5. Pakistan
  6. Papua New Guinea
  7. Liberia
  8. Haiti
  9. Turkey
  10. Sudan

India, with its markedly poor air quality and quickly rising emissions,
is ranked last for the first time in the history of the index. Poor air quality and growing GHG emissions continue to impact China, placing the nation 160th out of 180 countries.

complete rankings

The world’s most sustainable countries are scored and ranked on their environmental performance using the most recent year of data available. The ranking also includes how scores have changed over the previous decade.

Some nations are missing due to insufficient data.

RankCountryEPI Score10-year change
1Denmark77.914.9
2UK77.723.0
3Finland76.521.0
4Malta75.225.4
5Sweden72.715.8
6Luxembourg72.313.5
7Slovenia67.38.6
8Austria66.57.2
9Switzerland65.98.2
10Iceland62.84.4
11Netherlands62.65.9
12France62.56.4
13Germany62.42.2
14Estonia61.46.1
15Latvia61.18.2
16Croatia60.217.2
17Australia60.110.3
18Slovakia603.2
19Czech Rep59.95.2
20Norway59.35.8
21Belgium58.26.1
22Cyprus586.0
23Italy57.76.0
24Ireland57.42.5
25Japan57.23.2
26New Zealand56.7-0.4
27Spain56.67.3
28Bahamas56.29.8
28Greece56.24.3
30Romania565.3
31Lithuania55.93.2
32Seychelles55.67.0
33Hungary55.12.0
34North Macedonia54.33.6
35Botswana548.2
36Barbados53.212.7
36St Vincent & Gren53.28.9
38Sao Tome & Prin52.97.0
39Antigua & Barbuda52.49.7
39UAE52.415.9
41Bulgaria51.94.6
42Dominica51.210.2
43USA51.13.3
44Namibia50.916.4
44Singapore50.93.7
46Poland50.6NA
47Panama50.59.9
48Portugal50.4-1.6
49Belize50-2.1
49Canada504.0
51Gabon49.7-0.3
52Ukraine49.66.2
53StLucia49.40.3
54Kiribati494.8
55Belarus48.53.5
56Armenia48.34.8
57Israel48.21.9
58Grenada47.97.1
59Trinidad & Tobago47.819
60Cuba47.56.8
60Djibouti47.512.9
62Albania47.19.9
63Montenegro46.98.5
63South Korea46.91.8
65Chile46.76.8
66Ecuador46.59.2
67Venezuela46.40.2
68Costa Rica46.34.0
69Zimbabwe46.2-0.7
70Suriname45.9-8
71Brunei Darussalam45.77.4
72Jamaica45.6-2.0
73Mexico45.512.4
74Taiwan45.37.0
75Central African Rep44.9-0.7
75Eswatini44.91.5
77Equatorial Guinea44.815.3
77Mauritius44.810.0
79Serbia43.98.5
80Tonga43.8-3.0
81Afghanistan43.623.9
81Brazil43.65.4
81Jordan43.67.8
84Moldova42.7-4.8
85Bhutan42.5-7.9
85Comoros42.51
87Colombia42.4-0.5
87Kuwait42.415.2
89Dominican Rep42.2-3.1
90Bahrain425.7
91Cabo Verde41.94.8
92Argentina41.17.8
93Kazakhstan40.911.8
93Paraguay40.9-6
95El Salvador40.87.6
96Tunisia40.78.1
97Malawi40.6-4.5
98Guinea-Bissau40.23.5
99Bolivia40.10.6
99Rep of Congo40.16.2
101Peru39.8-0.4
102Bosnia & Herz39.410.0
103Georgia39.12.6
104Azerbaijan38.6-1.3
105Guyana38.5-6.1
106Zambia38.4-6.9
107Uzbekistan38.21.9
108Thailand38.17.2
109Saudi Arabia37.99.5
110Nicaragua37.7-0.9
110Niger37.7-2.8
112Russia37.51.6
113Maldives37.49.0
113Micronesia37.4-5.9
113Uruguay37.43.3
116South Africa37.210.1
117Tajikistan37.1-1.6
118Turkmenistan378.9
119DR Congo36.9-0.2
119Vanuatu36.9-9.2
121Honduras36.57.2
122Gambia36.45.6
122Samoa36.4-7.4
124Marshall Islands36.20.7
125Uganda35.83.1
126Kyrgyzstan35.71.2
127Burkina Faso35.52.0
127Egypt35.56.5
129Timor-Leste35.1-0.3
130Malaysia3510.3
130Solomon Islands350.8
132Sri Lanka34.7-2.6
133Iran34.56.9
134Tanzania34.23.4
135Togo34-2.4
136Senegal33.9-0.9
137Qatar33-2.3
138Cote d'Ivoire32.8-8.2
138Rwanda32.8-4.2
140Sierra Leone32.77.2
141Lesotho32.31.4
142Lebanon32.2-4.7
143Ethiopia31.83.6
144Eritrea31.7-5.5
144Mozambique31.70.6
146Guinea31.60.2
147Fiji31.3-3.7
148Kenya30.8-1.8
149Laos30.7-1.3
149Oman30.76.4
151Angola30.50.2
151Burundi30.5-13
153Cameroon30.2-2.0
154Cambodia30.12.0
155Algeria29.6-4.0
155Benin29.6-1.6
155Mongolia29.6-5.2
158Philippines28.9-7.5
159Mali28.5-1.8
160China28.411.4
160Morocco28.42.6
162Nepal28.3-10.3
162Nigeria28.3-6.1
164Indonesia28.24.1
165Chad28.1NA
165Mauritania28.1-3.3
167Guatemala28-3.0
167Madagascar28-5.4
169Iraq27.8-5.3
170Ghana27.7-6.1
171Sudan27.61.7
172Turkey26.3-0.5
173Haiti26.12.4
174Liberia24.9-4.0
175Papua New Guinea24.80.2
176Pakistan24.61.4
177Bangladesh23.1-1.9
178Vietnam20.1-0.6
179Myanmar19.4-3.8
180India18.9-0.6

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About the author

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Peter Watson is a writer, photographer and adventurer. He has been to 100 countries and climbed the highest mountains in Africa, Europe, South America and North America – four of the Seven Summits. peterjohnwatson.com