Photo: Haanofonua derivative work: Massimo Telò · CC BY-SA 3.0 · via Wikimedia Commons, shown in greyscale
Topic 07 of 18 · Country Index 2026
Tonga: Environment & Sustainability
How much pressure does a country put on the natural world?
Tonga is placed 95th of 186 countries on environment & sustainability in the Country Index 2026, from 3 of its 4 key statistics. Readings behind it: CO₂ Emissions per Capita 1.464 (2024); Organic Agricultural Area 0.92 (2024).
Share
Environment & Sustainability
95th
of 186 countries placed
Placed from 3 of 4 key statistics
01The evidence
The 4 key statistics that decide it
Only these place Tonga on environment & sustainability — one vote each. Every value is the publisher’s own, read at the edition the Country Index 2026 used; the grey ticks are every other country it was compared with, lowest on the left.
1.464
Fossil CO₂ (tonnes per person)
Lower is better
Tonga: 1.464. Across the 210 countries in this edition, values run from 0.054 (DR Congo) to 41.27 (Qatar); the world median is 3.21.
- World median
- 3.21
- Best in Polynesia
- 1.126 Samoa
Key 2 of 4
Water Stress
Food and Agriculture Organization of the United Nations (FAO)
2023 edition · data for 2023 · CC BY 4.0
No reading
Freshwater withdrawal as a share of available resources (%)
Lower is better
FAO publishes no 2023 figure for Tonga, so the standing rests on the other keys.
Across the 177 countries in this edition, values run from 0.03 (Republic of the Congo) to 3,851 (Kuwait); the world median is 10.
- World median
- 10
Key 3 of 4
Organic Agricultural Area
Food and Agriculture Organization of the United Nations (FAO)
2024 edition · data for 2024 · CC BY 4.0
0.92
Organic share of agricultural land (%)
Higher is better
Tonga: 0.92. Across the 156 countries in this edition, values run from 0 (Afghanistan) to 86.38 (Samoa); the world median is 0.725.
- World median
- 0.725
- Best in Polynesia
- 86.38 Samoa
3.759
Ecological Footprint (global hectares per person)
Lower is better
Tonga: 3.759. Across the 126 countries in this edition, values run from 0.514 (Yemen) to 11.73 (Qatar); the world median is 2.296.
- World median
- 2.296
- Best in Polynesia
- 2.287 Samoa
02Over time
Which way Tonga is moving
Each key’s published value, edition by edition, beside the world median. The Country Index 2026 is the first edition of the standing, so the standing itself has no history to chart yet.
CO₂ Emissions per Capita
Fossil CO₂ (tonnes per person) · lower is better
TongaWorld median
Tonga rose from 0.963 in 2000 to 1.464 in 2024; the world median went from 2.662 to 3.21.
Every year’s figures
Year Tonga World median 2024 1.4643 3.210 2023 1.3946 3.145 2022 1.3953 3.162 2021 1.3199 3.087 2020 1.3172 2.903 2019 1.5257 3.273 2018 1.2495 3.036 2017 1.3563 3.049 2016 1.3194 2.894 2015 1.0015 2.846 2014 0.9967 2.919 2013 1.0265 2.779 2012 0.9888 2.770 2011 0.9878 2.748 2010 1.0917 2.812 2009 1.1279 2.799 2008 0.9929 2.979 2007 1.0643 2.593 2006 1.2069 2.865 2005 1.0749 2.885 2004 1.0810 2.802 2003 1.1224 2.918 2002 0.9171 2.785 2001 0.8868 2.726 2000 0.9635 2.662 Organic Agricultural Area
Organic share of agricultural land (%) · higher is better
TongaWorld median
Tonga rose from 0.74 in 2011 to 0.92 in 2024; the world median went from 0.46 to 0.725.
Every year’s figures
Year Tonga World median 2024 0.92 0.725 2023 0.92 0.780 2022 0.92 0.740 2021 3.21 0.710 2020 3.22 0.665 2019 3.22 0.550 2018 1.96 0.490 2017 4.61 0.630 2016 4.33 0.545 2015 7.85 0.540 2014 6.10 0.470 2013 1.17 0.440 2012 1.18 0.480 2011 0.74 0.460 2010 — 0.330 2009 — 0.335 2008 — 0.290 2007 — 0.370 2006 — 0.305 2005 — 0.345 Ecological Footprint
Ecological Footprint (global hectares per person) · lower is better
TongaWorld median
Tonga rose from 1.869 in 2000 to 3.759 in 2025; the world median went from 1.95 to 2.296.
Every year’s figures
Year Tonga World median 2025 3.759 2.2963 2024 3.743 2.3139 2023 3.740 2.3174 2022 3.702 2.2724 2021 3.705 2.3370 2020 3.384 2.3057 2019 3.721 2.2578 2018 3.683 2.2485 2017 3.837 2.2209 2016 3.698 2.2308 2015 3.519 2.3000 2014 3.366 2.3814 2013 2.751 2.3363 2012 2.510 2.4200 2011 2.610 2.4794 2010 2.646 2.3679 2009 2.263 2.2224 2008 2.341 2.1727 2007 2.271 2.2036 2006 1.915 2.1203 2005 2.004 2.1512 2004 1.934 2.1055 2003 1.941 2.0449 2002 2.076 2.1195 2001 2.402 2.2004 2000 1.869 1.9499
03In context
Tonga beside its neighbours
A position reads best beside the countries around it. Every position below is a place among all 186 countries on environment & sustainability, never a place within the region.
Tonga and Polynesia
Tonga has no land border, so the table compares it with its sub-region. Standing among all 186; the key columns are the publishers’ own values.
| Country | Standing | CO₂ Emissions per CapitaFossil CO₂ (tonnes per person) | Water StressFreshwater withdrawal as a share of available resources (%) | Organic Agricultural AreaOrganic share of agricultural land (%) | Ecological FootprintEcological Footprint (global hectares per person) |
|---|---|---|---|---|---|
 Samoa | 25th | 1.126 | — | 86.38 | 2.287 |
| Tonga | 95th | 1.464 | — | 0.92 | 3.759 |
 American Samoa | not placed | — | — | — | — |
 Cook Islands | not placed | 5.833 | — | — | — |
 French Polynesia | not placed | 3.275 | — | — | — |
 Niue | not placed | 4.193 | — | — | — |
 Tuvalu | not placed | 1.186 | — | — | — |
“—”: no published reading in that edition. What a standing is
Across Polynesia
Every country in the sub-region, by its place among all 186.
Placed either side on environment & sustainability
The countries immediately above and below Tonga in the topic’s list.
04Context, no vote
Where Tonga is ahead of the world, and behind
34 more statistics filed under environment & sustainability, published in full and deliberately given no vote in the standing. Select a row for the publisher, the rank and the links.
Ahead of the world median4
Statistics on which Tonga does better than the middle country measured.
Municipal Solid Waste GenerationWorld Bank Group · 2026 · world median 0.9660.2460.966No earlier reading
Tonga: 0.246 · world median 0.966 · Municipal solid waste generated (kg per person per day). World Bank Group, 2026 edition, data for 2026.
Published values in that edition run from 0.058 to 4.176; lower is better.
Position 192nd of 201 · derived, 1st = worst.
PM2.5 Air Pollution ExposureAtmospheric Composition Analysis Group, Washington University in St. Louis · 2023 · world median 14.454.114.45No real change since 2013
Tonga: 4.1 · world median 14.45 · Population-weighted PM2.5 concentration (µg/m³). Atmospheric Composition Analysis Group, Washington University in St. Louis, 2023 edition, data for 2023.
Published values in that edition run from 2.5 to 68.2; lower is better.
Position 208th of 220 · derived, 1st = worst.
Wind and Solar Share of Electricity GenerationEmber · 2024 · world median 5.27914.295.279▲ Improved since 2014
Tonga: 14.29 · world median 5.279 · Wind and solar (% of electricity generated). Ember, 2024 edition, data for 2024.
Published values in that edition run from 0 to 69.12; higher is better.
World Risk IndexInstitute for International Law of Peace and Armed Conflict (IFHV), Ruhr University Bochum · 2025 · world median 4.173.674.17▲ Improved since 2015
Tonga: 3.67 · world median 4.17 · WorldRiskIndex score (0–100, where 100 is the most at risk). Institute for International Law of Peace and Armed Conflict (IFHV), Ruhr University Bochum, 2025 edition, data for 2025.
Published values in that edition run from 0.18 to 46.56; lower is better.
Position 104th of 193 · derived, 1st = worst.
Behind the world median9
Statistics on which Tonga does worse than the middle country measured.
Agricultural Emissions IntensityFAO · 2023 · world median 1.5652.311.565▼ Worsened since 2013
Tonga: 2.31 · world median 1.565 · Greenhouse gases from farming per value of agricultural output (kg CO₂eq per international dollar). Food and Agriculture Organization of the United Nations (FAO), 2023 edition, data for 2023.
Published values in that edition run from 0 to 28.2; lower is better.
Position 60th of 190 · derived, 1st = worst.
Carbon Intensity of ElectricityEmber · 2024 · world median 433.75571.43433.75▲ Improved since 2014
Tonga: 571.43 · world median 433.75 · Carbon intensity (gCO₂e per kWh generated). Ember, 2024 edition, data for 2024.
Published values in that edition run from 23.73 to 1,306; lower is better.
Position 49th of 165 · derived, 1st = worst.
Renewable Share of Electricity GenerationEmber · 2024 · world median 32.0614.2932.06▲ Improved since 2014
Tonga: 14.29 · world median 32.06 · Renewables (% of electricity generated). Ember, 2024 edition, data for 2024.
Published values in that edition run from 0 to 100; higher is better.
Position 118th of 162 · derived.
Low-Carbon Share of Electricity GenerationEmber · 2024 · world median 37.3214.2937.32▲ Improved since 2014
Tonga: 14.29 · world median 37.32 · Low-carbon sources (% of electricity generated). Ember, 2024 edition, data for 2024.
Published values in that edition run from 0 to 100; higher is better.
Position 119th of 162 · derived.
ND-GAIN Country IndexNotre Dame Global Adaptation Initiative (ND-GAIN), University of Notre Dame · 2024 · world median 47.4437.9247.44▼ Worsened since 2014
Tonga: 37.92 · world median 47.44 · ND-GAIN Index (0–100, where 100 is best placed to adapt). Notre Dame Global Adaptation Initiative (ND-GAIN), University of Notre Dame, 2024 edition, data for 2024.
Published values in that edition run from 26.42 to 71.85; higher is better.
Ranked 154th of 190 by Notre Dame Global Adaptation Initiative (ND-GAIN), University of Notre Dame.
Energy Intensity of GDP (PPP)EIA · 2024 · world median 2.7385.3672.738No real change since 2014
Tonga: 5.367 · world median 2.738 · Energy use per dollar of GDP (thousand Btu per US$ at PPP). U.S. Energy Information Administration (EIA), 2024 edition, data for 2024.
Published values in that edition run from 0.666 to 17.45; lower is better.
Adjusted Net SavingsWorld Bank Group · 2021 · world median 8.389-3.3478.389▼ Worsened since 2011
Tonga: -3.347 · world median 8.389 · Adjusted net savings, including particulate emission damage (% of GNI). World Bank Group, 2021 edition, data for 2021.
Published values in that edition run from -81.62 to 32.18; higher is better.
Position 107th of 118 · derived.
Climate Vulnerability (ND-GAIN)Notre Dame Global Adaptation Initiative (ND-GAIN), University of Notre Dame · 2024 · world median 0.450.5950.45▲ Improved since 2014
Tonga: 0.595 · world median 0.45 · ND-GAIN Vulnerability (0–1, where 1 is the most vulnerable). Notre Dame Global Adaptation Initiative (ND-GAIN), University of Notre Dame, 2024 edition, data for 2024.
Published values in that edition run from 0.263 to 0.655; lower is better.
Ranked 176th of 190 by Notre Dame Global Adaptation Initiative (ND-GAIN), University of Notre Dame.
Progress Toward Productive and Sustainable Agriculture (SDG 2.4.1 Proxy)FAO · 2024 · world median 3.142.143.14No real change since 2015
Tonga: 2.14 · world median 3.14 · Current status score, from 1 (worst) to 5 (best), averaged over up to seven sub-indicators. Food and Agriculture Organization of the United Nations (FAO), 2024 edition, data for 2024.
Published values in that edition run from 1.67 to 4.57; higher is better.
Position 171st of 186 · derived.
Level with the median, or no median to compare2
Coal Share of Electricity GenerationEmber · 2024 · world median 000No real change since 2014
Tonga: 0 · world median 0 · Coal (% of electricity generated). Ember, 2024 edition, data for 2024.
Published values in that edition run from 0 to 98.25; lower is better.
Annual Forest Area Change RateFAO · 2025 · world median 000No real change since 2015
Tonga: 0 · world median 0 · Compound annual change in forest area over the interval ending that year (%). Food and Agriculture Organization of the United Nations (FAO), 2025 edition, data for 2025.
Published values in that edition run from -3.29 to 12.3; higher is better.
No better end19
These describe the shape of a country — more is not better or worse, only different — so they are never ahead or behind.
Meat Supply per PersonFAO · 2023 · world median 57.83156.9557.83No real change since 2019
Tonga: 156.95 · world median 57.83 · Meat available as food (kg per person per year, carcass weight). Food and Agriculture Organization of the United Nations (FAO), 2023 edition, data for 2023.
Published values in that edition run from 3.49 to 156.95.
Population Living Below 5 m ElevationCenter for International Earth Science Information Network (CIESIN), Columbia University · 2015 · world median 2.95417.52.954No real change since 1990
Tonga: 17.5 · world median 2.954 · Population living below 5 m elevation (% of total population). Center for International Earth Science Information Network (CIESIN), Columbia University, 2015 edition, data for 2015.
Published values in that edition run from 0 to 78.48.
Solar Share of Electricity GenerationEmber · 2024 · world median 3.04914.293.049Moved since 2014
Tonga: 14.29 · world median 3.049 · Solar (% of electricity generated). Ember, 2024 edition, data for 2024.
Published values in that edition run from 0 to 50.
Livestock DensityFAO · 2023 · world median 0.5351.050.535No real change since 2013
Tonga: 1.05 · world median 0.535 · Livestock units per hectare of agricultural land. Food and Agriculture Organization of the United Nations (FAO), 2023 edition, data for 2023.
Published values in that edition run from 0.02 to 43.97.
Position 47th of 188 · derived, counted from the highest value.
Arable Land per PersonFAO · 2023 · world median 0.1090.1910.109Moved since 2013
Tonga: 0.191 · world median 0.109 · Arable land (hectares per person). Food and Agriculture Organization of the United Nations (FAO), 2023 edition, data for 2023.
Published values in that edition run from 0 to 1.459.
Position 62nd of 206 · derived, counted from the highest value.
Agricultural LandFAO · 2023 · world median 37.9648.6137.96Moved since 2013
Tonga: 48.61 · world median 37.96 · Agricultural land (% of land area). Food and Agriculture Organization of the United Nations (FAO), 2023 edition, data for 2023.
Published values in that edition run from 0.445 to 86.48.
Position 65th of 209 · derived, counted from the highest value.
Mangrove AreaGlobal Mangrove Watch (Aberystwyth University, JAXA, soloEO, Wetlands International, The Nature Conservancy) · 2025 · world median 8,9271,6438,927No real change since 2015
Tonga: 1,643 · world median 8,927 · Mangrove forest area (hectares). Global Mangrove Watch (Aberystwyth University, JAXA, soloEO, Wetlands International, The Nature Conservancy), 2025 edition, data for 2025.
Published values in that edition run from 0.524 to 3,146,544.
Forest AreaFAO · 2023 · world median 31.0812.4331.08No real change since 2013
Tonga: 12.43 · world median 31.08 · Forest area (% of land area). Food and Agriculture Organization of the United Nations (FAO), 2023 edition, data for 2023.
Published values in that edition run from 0 to 94.45.
Position 150th of 210 · derived, counted from the highest value.
Environmentally Related Tax RevenueOECD · 2024 · world median 1.0750.4221.075Moved since 2014
Tonga: 0.422 · world median 1.075 · Environmentally related tax revenue (% of GDP). OECD, 2024 edition, data for 2024.
Published values in that edition run from 0 to 3.346.
Solar Electricity Installed CapacityEIA · 2024 · world median 0.1440.0160.144Moved since 2014
Tonga: 0.016 · world median 0.144 · Solar generating capacity installed (gigawatts). U.S. Energy Information Administration (EIA), 2024 edition, data for 2024.
Published values in that edition run from 0 to 886.66.
Pesticide Use per HectareFAO · 2024 · world median 1.730.651.73No real change since 2014
Tonga: 0.65 · world median 1.73 · Pesticide use (kg per hectare of cropland). Food and Agriculture Organization of the United Nations (FAO), 2024 edition, data for 2024.
Published values in that edition run from 0 to 37.72.
Position 136th of 178 · derived, counted from the highest value.
Total Natural Resources Rents (% of GDP)World Bank Group · 2021 · world median 1.7080.0411.708No real change since 2011
Tonga: 0.041 · world median 1.708 · Natural resources rents (% of GDP). World Bank Group, 2021 edition, data for 2021.
Published values in that edition run from 0 to 61.03.
Position 160th of 180 · derived, counted from the highest value.
Methane EmissionsEDGAR · 2025 · world median 325.693.343325.69No real change since 2015
Tonga: 3.343 · world median 325.69 · Methane emissions (gigagrams of CH₄). European Commission, Joint Research Centre (EDGAR), 2025 edition, data for 2025.
Published values in that edition run from 0.048 to 51,093.
Agricultural EmissionsFAO · 2023 · world median 8,63583.858,635No real change since 2013
Tonga: 83.85 · world median 8,635 · Farm-gate emissions (kt CO₂eq). Food and Agriculture Organization of the United Nations (FAO), 2023 edition, data for 2023.
Published values in that edition run from 0 to 1,044,508.
Position 171st of 193 · derived, counted from the highest value.
Fisheries and Aquaculture ProductionFAO · 2024 · world median 52,3751,12252,375Moved since 2014
Tonga: 1,122 · world median 52,375 · Fish, crustaceans, molluscs and other aquatic animals caught or farmed, tonnes (live weight). Food and Agriculture Organization of the United Nations (FAO), 2024 edition, data for 2024.
Published values in that edition run from 0 to 70,500,841.
Burned AreaGWIS · 2025 · world median 13,824013,824No real change since 2015
Tonga: 0 · world median 13,824 · Burned area (hectares). European Commission Joint Research Centre — Global Wildfire Information System (GWIS), 2025 edition, data for 2025.
Published values in that edition run from 0 to 50,562,035.
Fertilizer Consumption per HectareFAO · 2023 · world median 87.364.5587.36Moved since 2013
Tonga: 4.55 · world median 87.36 · Fertilizer consumption (kg per hectare of arable land). Food and Agriculture Organization of the United Nations (FAO), 2023 edition, data for 2023.
Published values in that edition run from 0 to 2,926.
Position 172nd of 188 · derived, counted from the highest value.
Temperature Change on LandFAO · 2025 · world median 1.4740.8581.474Moved since 2015
Tonga: 0.858 · world median 1.474 · Change in mean land-surface temperature against the country's own 1951–1980 average, °C. Food and Agriculture Organization of the United Nations (FAO), 2025 edition, data for 2025.
Published values in that edition run from 0.34 to 3.294.
Cropland Nitrogen BalanceFAO · 2023 · world median 37.63-11.0237.63Moved since 2013
Tonga: -11.02 · world median 37.63 · Nitrogen surplus (+) or deficit (−) on cropland, kg per hectare. Food and Agriculture Organization of the United Nations (FAO), 2023 edition, data for 2023.
Published values in that edition run from -555.52 to 1,199.
No current reading for Tonga
Agricultural Irrigated Land, Baseline Water Stress (Aqueduct), Children's Climate Risk Index, Consumption-Based CO₂ Emissions, Forest Area within Legally Established Protected Areas, Land Under Cereal Production, Operating Coal Power Capacity, Operating Wind Power Capacity, Planetary pressures-adjusted HDI, Renewable Internal Freshwater Resources per Capita, Tree Cover Loss, Tropical Moist Forest Deforestation, Water Stress, Water Withdrawal by Sector, Water-Use Efficiency and World Energy Trilemma Index. Listed rather than hidden, so the page can be checked against it.
“Position · derived” is this site’s ordering of the published values, 1st = best unless the row says otherwise; the publisher ranks no country on it. Rank, position and standing
05Country Index 2026
Environment & Sustainability among Tonga’s 15 topics
Environment & Sustainability is Tonga’s 6th best-placed topic of 15. Strongest first, each marker at its share of that topic’s field.
- Poverty & Inequality15th of 1592/3 keys
- Mobility & Tradejoint 55th of 1772/4 keys
- Health & Wellbeing64th of 2003/4 keys
- Democracy & Civil Liberties77th of 1983/4 keys
- Education & Knowledge90th of 1983/4 keys
- Environment & Sustainability95th of 1863/4 keys
- Gender & Equality94th of 1832/4 keys
- Work & Labourjoint 103rd of 1824/4 keys
- Risk & Resilience113th of 1933/4 keys
- Development & Human Capital115th of 1963/3 keys
- Governance & Institutions124th of 1942/4 keys
- Energy120th of 1652/3 keys
- Digital & Technology159th of 1983/4 keys
- Economy & Innovation146th of 1762/4 keys
- Food & Agriculture169th of 1842/4 keys
No standing on Peace & Security: too few of those topics’ key statistics are published for this country.
06The top of the list
Who leads on environment & sustainability
The three countries placed highest of 186, and the leaders Tonga can most readily be measured against.
1
AngolaMiddle Africa
1st of 186 · 3 of 4 keys
Photo: Paulo César Santos derivative work: Jjtkk · CC0, greyscale
- 2
São Tomé and PríncipeMiddle Africa
2nd of 186 · 3 of 4 keys
3
Sierra LeoneWestern Africa
3rd of 186 · 4 of 4 keys
Photo: Annabel Symington derivative work: Jjtkk · CC BY 2.0, greyscale
Placed highest nearby
Highest in Oceania
Solomon Islands7th2/4 keysHighest in Polynesia
Samoa25th3/4 keysThis page
Tonga95th3/4 keys
Positions out of 186 placed on the topic. A country needs readings on enough keys to be placed, and the top of the list is often held on fewer of them.
07Questions
Tonga on environment & sustainability: questions answered
Every answer is built from the numbers on this page, so none can say something the page does not.
How does Tonga rank on environment & sustainability?
Tonga is placed 95th of 186 countries on Environment & Sustainability in the Country Index 2026, from 3 of its 4 key statistics (CO₂ Emissions per Capita, Organic Agricultural Area and Ecological Footprint). The position is this site’s ordering of published statistics, not a rank any publisher printed.
What is the latest CO₂ Emissions per Capita figure for Tonga?
1.464 in 2024 (fossil CO₂ (tonnes per person)), according to Global Carbon Project. The world median in the same edition was 3.21.
What is the latest Organic Agricultural Area figure for Tonga?
0.92 in 2024 (organic share of agricultural land (%)), according to Food and Agriculture Organization of the United Nations (FAO). The world median in the same edition was 0.725.
How have Tonga’s environment & sustainability figures changed?
CO₂ Emissions per Capita rose from 0.963 in 2000 to 1.464 in 2024; Organic Agricultural Area rose from 0.74 in 2011 to 0.92 in 2024; Ecological Footprint rose from 1.869 in 2000 to 3.759 in 2025.
Which environment & sustainability statistics are missing for Tonga?
No current reading is published for Tonga on Agricultural Irrigated Land, Baseline Water Stress (Aqueduct), Children's Climate Risk Index, Consumption-Based CO₂ Emissions, Forest Area within Legally Established Protected Areas, Land Under Cereal Production, Operating Coal Power Capacity, Operating Wind Power Capacity, Planetary pressures-adjusted HDI, Renewable Internal Freshwater Resources per Capita, Tree Cover Loss, Tropical Moist Forest Deforestation, Water Stress, Water Withdrawal by Sector, Water-Use Efficiency and World Energy Trilemma Index. They are listed rather than hidden, so the evidence on the page can be checked against it.
08Method
Method, sources and how to cite
What this topic does not measure
Air quality and biodiversity are not keys, because the site does not yet hold data for them that passes every test. Forest cover, farmland, farm emissions and the renewable share of electricity are published here as context. Exposure to natural hazards belongs to Risk & Resilience.
How the Environment & Sustainability standing is decided
A standing is this site’s ordering, named with its edition — never a publisher’s rank. 4 key statistics vote, one vote each; every country’s published value becomes a place within that key’s own field, the places are averaged, and the average is never published. A country needs 2 of the 4 keys to be placed.
The environment & sustainability method, step by stepHow every standing on this site is built
The key statistics and their licences
- CO₂ Emissions per Capita — Global Carbon Project, CC BY 4.0
- Water Stress — Food and Agriculture Organization of the United Nations (FAO), CC BY 4.0
- Organic Agricultural Area — Food and Agriculture Organization of the United Nations (FAO), CC BY 4.0
- Ecological Footprint — Global Footprint Network, CC BY-SA 4.0
The other 34 statistics on this page come from 12 publishers, each named beside its numbers, with every edition and licence on the datasets pages.
The standing itself is part of the Country Index 2026, published under CC BY-SA 4.0.
Photographs
Tonga’s banner and the countries placed highest, from their profiles: Wikimedia Commons, shown in greyscale, each used under the licence named.
- Tonga (banner) — Haanofonua derivative work: Massimo Telò, CC BY-SA 3.0
- Angola — Paulo César Santos derivative work: Jjtkk, CC0
- Sierra Leone — Annabel Symington derivative work: Jjtkk, CC BY 2.0
Cite this page
Nations Inquiry (2026). Tonga: Environment & Sustainability — standing and statistics, Country Index 2026. https://nationsinquiry.com/countries/tonga/environment