Tonga

rank Score 10y ∆
Environmental Performance Index 122 40.2 -6.9
Ecosystem Vitality 163 34.0 -2.6
Biodiversity & Habitat 172 15.3 1.2
Marine KBA Protection 113 0.2 0.0
Marine Habitat Protection 112 3.7 0.0
Marine Protection Stringency 1 100.0 43.2
Protected Areas Representativeness Index
Species Protection Index 162 7.9 5.0
Terrestrial Biome Protection (national weights) 125 33.1 0.0
Terrestrial KBA Protection 175 0.5 0.0
Protected Area Effectiveness 1 100.0 0.0
Protected Human Land 31 98.1 0.0
Red List Index 157 9.9 -5.6
Species Habitat Index
Bioclimatic Ecosystem Resilience 168 0.4 0.4
Forests
Primary Forest Loss
Intact Forest Landscape Loss
Tree cover loss weighted by permanency
Net change in tree cover
Forest Lanscape Integrity
Fisheries 6 95.7 0.0
Fish Stock Status 3 98.2 1.7
Fish Catch Discarded 1 100.0 0.0
Bottom Trawling in EEZ 1 100.0 0.0
Bottom Trawling in Global Ocean 1 100.0 0.0
Regional Marine Trophic Index 129 18.8 -5.0
Air Pollution 99 70.4 -25.9
Ozone exposure KBAs 61 63.0 3.9
Ozone exposure croplands
Adjusted emissions growth rate for nitrous oxides 76 74.7 -25.3
Adjusted emissions growth rate for sulfur dioxide 125 67.5 -32.5
Agriculture 106 49.9 9.0
Sustainable Nitrogen Management Index 47 53.7 24.2
Phosphorus Surplus 93 53.9 -19.8
Pesticide Pollution Risk 180 0.0 0.0
Relative Crop Yield 83 66.6 0.0
Water Resources 99 34.8 0.0
Wastewater generated 79 51.9 0.0
Wastewater collected 93 39.6 0.0
Wastewater treated 99 27.6 0.0
Wastewater reused 95 27.6 0.0
Environmental Health 44 58.2 0.7
Air Quality 39 60.3 0.5
Anthropogenic PM2.5 exposure 1 100.0 0.0
Household solid fuels 123 13.4 1.5
Ozone exposure 68 46.1 3.8
NO2 exposure 19 68.8 -6.5
SO2 exposure 1 100.0 0.5
CO exposure 1 100.0 0.0
VOC exposure 1 100.0 0.0
Sanitation & Drinking Water 103 50.2 0.8
Unsafe sanitation 102 50.9 1.2
Unsafe drinking water 101 49.7 0.5
Heavy Metals 29 74.0 3.1
Lead exposure 29 74.0 3.1
Waste Management 83 32.0 0.0
Waste Generated Per Capita 48 60.5 0.0
Controlled Solid Waste 95 28.4 0.0
Waste Recovery Rate 79 5.3 0.0
Climate Change 139 32.5 -20.6
Climate Change Mitigation 139 32.5 -20.6
Adjusted emissions growth rate for carbon dioxide 161 23.7 -33.1
Adjusted emissions growth rate for carbon dioxide (country-specific targets) 160 23.3 -57.8
Adjusted emissions growth rate for methane 87 44.4 -1.6
Adjusted emissions growth rate for F-gases
Adjusted emissions growth rate for nitrous oxide 65 48.3 -5.9
Adjusted emissions growth rate for black carbon 86 60.8 -2.0
Net carbon fluxes due to land cover change
GHG growth rate adjusted by emissions intensity 154 24.5 -22.1
GHG growth rate adjusted by per capita emissions 147 30.4 -20.9
Projected emissions in 2050 17 53.8 -7.3
Projected cumulative emissions to 2050 relative to carbon budget 104 65.6 0.0