Chlorophyll-a anomaly, remote sensing (%) by country
Countries reporting
204
Highest
8.2%
Yemen
Lowest
0.0%
Papua New Guinea
Median
0.6%
Years covered
5
2018–2022
Data points
1,175
What the numbers show
Chlorophyll-a anomaly, remote sensing (%) is currently reported for 204 countries. The highest value is 8.2% in Yemen; the lowest is 0.0% in Papua New Guinea.
The median across all reporting countries is 0.6%, and the mean is 1.0%.
Chlorophyll-a anomaly, remote sensing: full country ranking
| # | Country | Latest | Year | 10-year change | Trend |
|---|---|---|---|---|---|
| 1 | Yemen | 8.2% | 2022 | — | falling |
| 2 | Equatorial Guinea | 7.7% | 2022 | — | rising |
| 3 | Gabon | 5.7% | 2022 | — | rising |
| 4 | Somalia | 5.5% | 2022 | — | rising |
| 5 | Sri Lanka | 5.0% | 2022 | — | rising |
| 6 | Oman | 5.0% | 2022 | — | rising |
| 7 | French Guiana | 4.5% | 2022 | — | falling |
| 8 | Djibouti | 4.4% | 2022 | — | volatile |
| 9 | Greenland | 3.8% | 2022 | — | falling |
| 10 | Barbados | 3.7% | 2022 | — | falling |
| 11 | Kenya | 3.7% | 2022 | — | volatile |
| 12 | Uruguay | 3.5% | 2022 | — | falling |
| 13 | Cote d'Ivoire | 3.4% | 2022 | — | rising |
| 13 | Côte d'Ivoire | 3.4% | 2022 | — | rising |
| 15 | Suriname | 3.3% | 2022 | — | flat |
| 16 | Congo | 3.2% | 2022 | — | falling |
| 17 | Argentina | 3.0% | 2022 | — | falling |
| 18 | Gambia | 2.8% | 2022 | — | volatile |
| 19 | Peru | 2.5% | 2022 | — | rising |
| 20 | Pakistan | 2.5% | 2022 | — | falling |
| 21 | Guatemala | 2.5% | 2022 | — | rising |
| 22 | Russia | 2.4% | 2022 | — | falling |
| 22 | Russian Federation | 2.4% | 2022 | — | falling |
| 24 | Faroe Islands | 2.4% | 2022 | — | rising |
| 25 | Estonia | 2.4% | 2022 | — | volatile |
| 26 | Iceland | 2.3% | 2022 | — | falling |
| 27 | Angola | 2.3% | 2022 | — | falling |
| 28 | India | 2.3% | 2022 | — | falling |
| 29 | Jordan | 2.3% | 2022 | — | volatile |
| 30 | Norway | 2.2% | 2022 | — | volatile |
| 31 | El Salvador | 2.2% | 2022 | — | rising |
| 32 | Finland | 2.2% | 2022 | — | volatile |
| 33 | Senegal | 2.1% | 2022 | — | volatile |
| 34 | State of Palestine | 2.1% | 2022 | — | rising |
| 35 | Ghana | 2.0% | 2022 | — | volatile |
| 36 | Nicaragua | 2.0% | 2022 | — | rising |
| 37 | Sweden | 1.8% | 2022 | — | volatile |
| 38 | Trinidad and Tobago | 1.8% | 2022 | — | volatile |
| 39 | Saint Lucia | 1.8% | 2022 | — | rising |
| 40 | Poland | 1.7% | 2022 | — | volatile |
| 41 | Democratic Republic of the Congo | 1.7% | 2022 | — | falling |
| 42 | Ireland | 1.6% | 2022 | — | rising |
| 43 | Canada | 1.6% | 2022 | — | falling |
| 44 | Mauritania | 1.6% | 2022 | — | falling |
| 45 | United Kingdom | 1.6% | 2022 | — | flat |
| 45 | United Kingdom of Great Britain and Northern Ireland | 1.6% | 2022 | — | flat |
| 47 | Martinique | 1.5% | 2022 | — | flat |
| 48 | Slovenia | 1.5% | 2022 | — | volatile |
| 49 | Mexico | 1.5% | 2022 | — | rising |
| 50 | Sao Tome and Principe | 1.4% | 2022 | — | volatile |
| 51 | South Korea | 1.4% | 2022 | — | volatile |
| 51 | Republic of Korea | 1.4% | 2022 | — | volatile |
| 53 | Venezuela (Bolivarian Republic of) | 1.4% | 2022 | — | volatile |
| 54 | Namibia | 1.4% | 2022 | — | falling |
| 55 | Democratic People's Republic of Korea | 1.3% | 2022 | — | falling |
| 56 | Guyana | 1.3% | 2022 | — | volatile |
| 57 | Ecuador | 1.3% | 2022 | — | volatile |
| 58 | Panama | 1.3% | 2022 | — | flat |
| 59 | Eritrea | 1.3% | 2022 | — | falling |
| 60 | Aruba | 1.2% | 2022 | — | volatile |
| 61 | Bonaire, Sint Eustatius and Saba | 1.2% | 2022 | — | volatile |
| 62 | Spain | 1.2% | 2022 | — | falling |
| 63 | Guinea-Bissau | 1.2% | 2022 | — | volatile |
| 64 | Dominica | 1.1% | 2022 | — | volatile |
| 65 | Chile | 1.1% | 2022 | — | falling |
| 66 | Belgium | 1.0% | 2022 | — | rising |
| 67 | Bangladesh | 1.0% | 2022 | — | volatile |
| 68 | Tunisia | 1.0% | 2022 | — | flat |
| 69 | Benin | 1.0% | 2022 | — | volatile |
| 70 | United States | 1.0% | 2022 | — | volatile |
| 71 | Monaco | 1.0% | 2022 | — | volatile |
| 72 | South Africa | 0.9% | 2022 | — | falling |
| 73 | East Timor | 0.9% | 2022 | — | rising |
| 73 | Timor-Leste | 0.9% | 2022 | — | rising |
| 75 | Cabo Verde | 0.9% | 2022 | — | falling |
| 76 | France | 0.9% | 2022 | — | volatile |
| 77 | Liberia | 0.9% | 2022 | — | volatile |
| 78 | Colombia | 0.9% | 2022 | — | volatile |
| 79 | Grenada | 0.9% | 2022 | — | volatile |
| 80 | Curacao | 0.9% | 2022 | — | volatile |
| 80 | Curaçao | 0.9% | 2022 | — | volatile |
| 82 | Latvia | 0.9% | 2022 | — | volatile |
| 83 | Honduras | 0.9% | 2022 | — | volatile |
| 84 | Costa Rica | 0.8% | 2022 | — | volatile |
| 85 | Brunei | 0.8% | 2022 | — | flat |
| 85 | Brunei Darussalam | 0.8% | 2022 | — | flat |
| 87 | Vietnam | 0.8% | 2022 | — | rising |
| 87 | Viet Nam | 0.8% | 2022 | — | rising |
| 89 | Netherlands (Kingdom of the) | 0.8% | 2022 | — | volatile |
| 90 | China | 0.8% | 2022 | — | volatile |
| 91 | Puerto Rico | 0.8% | 2022 | — | volatile |
| 92 | Nigeria | 0.8% | 2022 | — | falling |
| 93 | Saint Vincent and the Grenadines | 0.8% | 2022 | — | falling |
| 94 | Belize | 0.7% | 2022 | — | rising |
| 95 | Portugal | 0.7% | 2022 | — | rising |
| 96 | Lithuania | 0.7% | 2022 | — | volatile |
| 97 | Denmark | 0.7% | 2022 | — | falling |
| 98 | Guadeloupe | 0.7% | 2022 | — | volatile |
| 99 | Albania | 0.6% | 2022 | — | rising |
| 100 | New Zealand | 0.6% | 2022 | — | falling |
| 101 | Morocco | 0.6% | 2022 | — | falling |
| 102 | Indonesia | 0.6% | 2022 | — | flat |
| 103 | Sudan | 0.6% | 2022 | — | volatile |
| 104 | Vanuatu | 0.6% | 2022 | — | volatile |
| 105 | Iran (Islamic Republic of) | 0.6% | 2022 | — | rising |
| 106 | Germany | 0.6% | 2022 | — | falling |
| 107 | Brazil | 0.6% | 2022 | — | rising |
| 108 | Haiti | 0.5% | 2022 | — | volatile |
| 109 | Guinea | 0.5% | 2022 | — | falling |
| 110 | Malaysia | 0.5% | 2022 | — | rising |
| 111 | Seychelles | 0.5% | 2022 | — | volatile |
| 112 | Montenegro | 0.5% | 2022 | — | volatile |
| 113 | Madagascar | 0.4% | 2022 | — | volatile |
| 114 | Myanmar | 0.4% | 2022 | — | falling |
| 115 | Mozambique | 0.4% | 2022 | — | volatile |
| 116 | Dominican Republic | 0.4% | 2022 | — | volatile |
| 117 | Heard Island and McDonald Islands | 0.4% | 2022 | — | falling |
| 118 | Togo | 0.4% | 2022 | — | volatile |
| 119 | Israel | 0.4% | 2022 | — | rising |
| 120 | Romania | 0.4% | 2022 | — | falling |
| 121 | Sierra Leone | 0.4% | 2022 | — | volatile |
| 122 | Cameroon | 0.4% | 2022 | — | volatile |
| 123 | Australia and New Zealand | 0.4% | 2022 | — | falling |
| 124 | Australia | 0.4% | 2022 | — | falling |
| 125 | Cambodia | 0.4% | 2022 | — | volatile |
| 126 | Egypt | 0.4% | 2022 | — | rising |
| 127 | United Republic of Tanzania | 0.4% | 2022 | — | rising |
| 128 | Caribbean | 0.3% | 2022 | — | rising |
| 129 | Maldives | 0.3% | 2022 | — | volatile |
| 130 | Kazakhstan | 0.3% | 2022 | — | volatile |
| 131 | Thailand | 0.3% | 2022 | — | rising |
| 132 | Philippines | 0.3% | 2022 | — | falling |
| 133 | Syria | 0.3% | 2022 | — | falling |
| 133 | Syrian Arab Republic | 0.3% | 2022 | — | falling |
| 135 | Italy | 0.3% | 2022 | — | falling |
| 136 | Saint Pierre and Miquelon | 0.3% | 2022 | — | falling |
| 137 | Saint Kitts and Nevis | 0.2% | 2022 | — | volatile |
| 138 | Algeria | 0.2% | 2022 | — | volatile |
| 139 | Guernsey | 0.2% | 2022 | — | volatile |
| 140 | Turkey | 0.2% | 2022 | — | falling |
| 140 | Türkiye | 0.2% | 2022 | — | falling |
| 142 | Singapore | 0.2% | 2022 | — | rising |
| 143 | Montserrat | 0.2% | 2022 | — | volatile |
| 144 | Bulgaria | 0.2% | 2022 | — | falling |
| 145 | Jamaica | 0.2% | 2022 | — | volatile |
| 146 | Lebanon | 0.2% | 2022 | — | falling |
| 147 | Greece | 0.2% | 2022 | — | volatile |
| 148 | Georgia | 0.2% | 2022 | — | volatile |
| 149 | Cuba | 0.1% | 2022 | — | falling |
| 150 | Antigua and Barbuda | 0.1% | 2022 | — | volatile |
| 151 | Fiji | 0.1% | 2022 | — | rising |
| 152 | United States Virgin Islands | 0.1% | 2022 | — | volatile |
| 153 | Saudi Arabia | 0.1% | 2022 | — | volatile |
| 154 | Palau | 0.1% | 2022 | — | volatile |
| 155 | Solomon Islands | 0.1% | 2022 | — | volatile |
| 156 | Croatia | 0.1% | 2022 | — | volatile |
| 157 | Saint Helena | 0.1% | 2022 | — | volatile |
| 158 | Libya | 0.1% | 2022 | — | rising |
| 159 | Jersey | 0.1% | 2022 | — | volatile |
| 160 | Malta | 0.1% | 2022 | — | volatile |
| 161 | Saint Barthélemy | 0.1% | 2022 | — | volatile |
| 162 | Samoa | 0.1% | 2022 | — | volatile |
| 163 | Reunion | 0.0% | 2022 | — | volatile |
| 163 | Réunion | 0.0% | 2022 | — | volatile |
| 165 | Tonga | 0.0% | 2022 | — | volatile |
| 166 | New Caledonia | 0.0% | 2022 | — | flat |
| 167 | Marshall Islands | 0.0% | 2022 | — | volatile |
| 168 | Micronesia | 0.0% | 2022 | — | volatile |
| 169 | Polynesia | 0.0% | 2022 | — | volatile |
| 170 | Azerbaijan | 0.0% | 2022 | — | volatile |
| 171 | Pitcairn | 0.0% | 2022 | — | volatile |
| 172 | Cyprus | 0.0% | 2022 | — | rising |
| 173 | Sint Maarten (Dutch part) | 0.0% | 2022 | — | volatile |
| 174 | Turks and Caicos Islands | 0.0% | 2022 | — | volatile |
| 175 | Saint Martin (French Part) | 0.0% | 2022 | — | rising |
| 176 | Turkmenistan | 0.0% | 2022 | — | volatile |
| 177 | Kuwait | 0.0% | 2022 | — | volatile |
| 178 | Bahamas | 0.0% | 2022 | — | rising |
| 179 | Melanesia | 0.0% | 2022 | — | rising |
| 180 | Northern Mariana Islands | 0.0% | 2022 | — | volatile |
| 181 | French Polynesia | 0.0% | 2022 | — | rising |
| 182 | Comoros | 0.0% | 2022 | — | rising |
| 183 | Mauritius | 0.0% | 2022 | — | rising |
| 184 | Norfolk Island | 0.0% | 2022 | — | volatile |
| 185 | Cook Islands | 0.0% | 2022 | — | rising |
| 186 | Bermuda | 0.0% | 2022 | — | volatile |
| 187 | Niue | 0.0% | 2022 | — | volatile |
| 188 | Guam | 0.0% | 2022 | — | volatile |
| 189 | Christmas Island | 0.0% | 2022 | — | volatile |
| 190 | Wallis and Futuna Islands | 0.0% | 2022 | — | volatile |
| 191 | Anguilla | 0.0% | 2022 | — | volatile |
| 192 | British Virgin Islands | 0.0% | 2022 | — | volatile |
| 193 | American Samoa | 0.0% | 2022 | — | volatile |
| 194 | Tuvalu | 0.0% | 2022 | — | falling |
| 195 | Cayman Islands | 0.0% | 2022 | — | rising |
| 196 | Cocos (Keeling) Islands | 0.0% | 2022 | — | volatile |
| 197 | Qatar | 0.0% | 2022 | — | volatile |
| 198 | Nauru | 0.0% | 2022 | — | volatile |
| 198 | Naoero | 0.0% | 2022 | — | volatile |
| 200 | Bahrain | 0.0% | 2022 | — | volatile |
| 201 | Kiribati | 0.0% | 2022 | — | volatile |
| 202 | Tokelau | 0.0% | 2022 | — | volatile |
| 203 | Iraq | 0.0% | 2022 | — | volatile |
| 204 | Papua New Guinea | 0.0% | 2022 | — | volatile |
Regions and income groups
Aggregates are excluded from the country ranking above so that a region can never outrank a country.
- Eastern Europe 2.4%
- Europe 2.2%
- Middle Africa 2.1%
- Northern Europe 1.8%
- Southern Asia 1.8%
- Europe and Northern America 1.8%
- Sub-Saharan Africa 1.7%
- Least Developed Countries (LDCs) 1.7%
- Central America 1.5%
- Western Asia 1.4%
- Northern America 1.4%
- Americas 1.3%
- Latin America and the Caribbean 1.3%
- South America 1.3%
- World 1.3%
- Central and Southern Asia 1.3%
- Africa 1.2%
- Southern Africa 1.1%
- Asia 1.0%
- United States of America 1.0%
- Eastern Asia 0.8%
- Western Europe 0.8%
- Small island developing States (SIDS) 0.8%
- Northern Africa and Western Asia 0.8%
- Eastern and South-Eastern Asia 0.7%
- Southern Europe 0.7%
- South-Eastern Asia 0.5%
- Northern Africa 0.4%
- Oceania 0.3%
- Central Asia 0.3%
- Oceania (exc. Australia and New Zealand) 0.0%