Chlorophyll-a deviation from the global average by country
Chlorophyll-a deviations, remote sensing (%)
Countries reporting
188
Highest
20.6%
Trinidad and Tobago
Lowest
0.0%
Christmas Island
Median
1.4%
Years covered
18
2005–2022
Data points
3,410
What the numbers show
Chlorophyll-a deviation from the global average is currently reported for 188 countries. The highest value is 20.6% in Trinidad and Tobago; the lowest is 0.0% in Christmas Island.
The median across all reporting countries is 1.4%, and the mean is 3.4%.
Over the past decade 71 countries rose and 117 fell. The largest increase was in Antigua and Barbuda (up 2,875.0%), and the largest decrease in American Samoa (down 100.0%).
Chlorophyll-a deviation from the global average: full country ranking
| # | Country | Latest | Year | 10-year change | Trend |
|---|---|---|---|---|---|
| 1 | Trinidad and Tobago | 20.6% | 2022 | up 193.6% | volatile |
| 2 | Barbados | 18.2% | 2022 | up 702.6% | volatile |
| 3 | Congo | 17.8% | 2022 | up 36.3% | falling |
| 4 | Grenada | 16.8% | 2022 | up 143.8% | volatile |
| 5 | French Guiana | 15.7% | 2022 | up 15.2% | flat |
| 6 | Canada | 15.7% | 2022 | up 69.9% | rising |
| 7 | Suriname | 15.6% | 2022 | up 109.0% | rising |
| 8 | Democratic Republic of Congo | 14.4% | 2022 | up 57.5% | falling |
| 9 | Greenland | 14.4% | 2022 | up 94.7% | rising |
| 10 | Guyana | 13.4% | 2022 | up 295.3% | volatile |
| 11 | Russia | 13.3% | 2022 | up 22.9% | rising |
| 12 | Svalbard and Jan Mayen | 13.1% | 2021 | up 25.0% | rising |
| 13 | Sri Lanka | 13.1% | 2022 | up 260.3% | volatile |
| 14 | Falkland Islands | 12.9% | 2022 | down 14.1% | rising |
| 15 | Gabon | 12.4% | 2022 | up 81.2% | falling |
| 16 | Norway | 11.1% | 2022 | down 23.9% | rising |
| 17 | Bulgaria | 11.1% | 2022 | up 2,214.6% | volatile |
| 18 | Nauru | 11.0% | 2022 | up 379.5% | volatile |
| 19 | Iceland | 10.2% | 2022 | down 7.1% | rising |
| 20 | French Southern Territories | 10.1% | 2021 | up 97.3% | rising |
| 21 | Cameroon | 10.1% | 2022 | up 27.3% | rising |
| 22 | Ukraine | 9.2% | 2022 | up 981.2% | volatile |
| 23 | South Georgia and the South Sandwich Islands | 9.0% | 2022 | down 46.4% | flat |
| 24 | Peru | 8.8% | 2022 | up 46.2% | rising |
| 24 | Saint Vincent and the Grenadines | 8.8% | 2022 | up 1,032.0% | volatile |
| 26 | Chile | 8.7% | 2022 | up 76.6% | rising |
| 27 | Saint Pierre and Miquelon | 8.4% | 2022 | down 10.5% | volatile |
| 28 | Saint Lucia | 8.3% | 2022 | up 798.9% | volatile |
| 30 | Guatemala | 7.9% | 2022 | up 45.6% | volatile |
| 31 | Romania | 7.9% | 2022 | up 401.9% | volatile |
| 32 | Turkey | 7.5% | 2022 | up 1,871.0% | volatile |
| 33 | Equatorial Guinea | 7.4% | 2022 | up 91.8% | falling |
| 34 | Uruguay | 7.3% | 2022 | up 36.9% | volatile |
| 35 | United Kingdom | 7.3% | 2022 | up 71.7% | rising |
| 37 | New Zealand | 6.9% | 2022 | up 94.4% | rising |
| 38 | Argentina | 6.6% | 2022 | down 40.2% | rising |
| 39 | Nigeria | 6.1% | 2022 | up 60.4% | rising |
| 40 | Djibouti | 5.9% | 2022 | up 16.7% | volatile |
| 41 | Faroe Islands | 5.8% | 2022 | up 58.1% | falling |
| 42 | India | 5.7% | 2022 | up 130.8% | rising |
| 43 | Eritrea | 5.4% | 2022 | up 38.5% | falling |
| 44 | Kazakhstan | 5.4% | 2022 | down 29.3% | volatile |
| 45 | Vanuatu | 5.4% | 2022 | up 396.3% | falling |
| 47 | Dominica | 5.1% | 2022 | up 672.7% | volatile |
| 48 | North Korea | 5.0% | 2022 | up 55.8% | volatile |
| 49 | Western Sahara | 4.9% | 2022 | down 33.6% | falling |
| 50 | Yemen | 4.8% | 2022 | up 125.2% | flat |
| 51 | Venezuela | 4.8% | 2022 | up 59.9% | volatile |
| 52 | Angola | 4.6% | 2022 | up 5.0% | falling |
| 53 | Namibia | 4.4% | 2022 | down 65.1% | falling |
| 54 | United States | 4.3% | 2022 | down 32.4% | falling |
| 55 | Brunei | 4.0% | 2022 | up 25.1% | volatile |
| 56 | France | 3.7% | 2022 | up 52.1% | rising |
| 57 | Australia | 3.5% | 2022 | up 89.7% | rising |
| 58 | Oman | 3.4% | 2022 | down 5.8% | falling |
| 59 | Gambia | 3.4% | 2022 | down 34.9% | volatile |
| 60 | El Salvador | 3.3% | 2022 | down 73.8% | volatile |
| 61 | Heard Island and McDonald Islands | 3.3% | 2022 | down 3.3% | volatile |
| 62 | Benin | 3.2% | 2022 | down 14.3% | volatile |
| 63 | South Korea | 3.1% | 2022 | up 23.2% | falling |
| 64 | Bangladesh | 3.0% | 2022 | down 48.7% | falling |
| 65 | Guinea | 3.0% | 2022 | down 25.0% | volatile |
| 66 | Guinea-Bissau | 3.0% | 2022 | down 50.7% | volatile |
| 67 | Cote d'Ivoire | 2.9% | 2022 | up 7.1% | volatile |
| 68 | Denmark | 2.8% | 2022 | down 28.8% | falling |
| 69 | South Africa | 2.8% | 2022 | up 9.0% | rising |
| 70 | Finland | 2.7% | 2022 | down 57.0% | volatile |
| 71 | China | 2.6% | 2022 | down 44.2% | falling |
| 72 | Senegal | 2.4% | 2022 | down 45.7% | falling |
| 73 | Gibraltar | 2.4% | 2022 | down 44.8% | volatile |
| 74 | Spain | 2.4% | 2022 | down 49.9% | falling |
| 74 | Mexico | 2.4% | 2022 | down 44.6% | volatile |
| 76 | Maldives | 2.3% | 2022 | up 588.2% | volatile |
| 77 | Somalia | 2.2% | 2022 | up 68.7% | falling |
| 78 | Belize | 2.2% | 2022 | down 12.0% | volatile |
| 78 | Saint Martin (French part) | 2.2% | 2022 | down 75.5% | volatile |
| 78 | Nicaragua | 2.2% | 2022 | down 60.1% | volatile |
| 81 | Micronesia (country) | 2.2% | 2022 | up 2.8% | volatile |
| 81 | Papua New Guinea | 2.2% | 2022 | down 39.7% | volatile |
| 83 | Netherlands | 2.0% | 2022 | down 28.6% | volatile |
| 84 | Georgia | 2.0% | 2022 | up 2,771.4% | volatile |
| 85 | Latvia | 2.0% | 2022 | down 35.3% | volatile |
| 86 | Cape Verde | 2.0% | 2022 | down 15.5% | volatile |
| 87 | Mauritania | 1.9% | 2022 | down 70.1% | volatile |
| 87 | Sudan | 1.9% | 2022 | down 52.4% | volatile |
| 89 | Montenegro | 1.9% | 2022 | up 19.9% | volatile |
| 90 | Brazil | 1.7% | 2022 | up 18.9% | flat |
| 91 | Togo | 1.7% | 2022 | down 31.6% | volatile |
| 92 | Sierra Leone | 1.6% | 2022 | up 6.5% | volatile |
| 93 | Liberia | 1.6% | 2022 | up 21.4% | volatile |
| 94 | Germany | 1.6% | 2022 | down 34.9% | falling |
| 95 | Morocco | 1.6% | 2022 | down 85.1% | volatile |
| 95 | Malaysia | 1.6% | 2022 | up 13.1% | volatile |
| 97 | Ghana | 1.4% | 2022 | up 34.3% | volatile |
| 98 | Marshall Islands | 1.4% | 2022 | down 42.5% | volatile |
| 99 | Fiji | 1.4% | 2022 | up 71.2% | rising |
| 100 | Costa Rica | 1.3% | 2022 | down 57.6% | volatile |
| 101 | Saudi Arabia | 1.3% | 2022 | down 33.2% | volatile |
| 102 | Panama | 1.2% | 2022 | down 65.3% | falling |
| 102 | Sint Maarten (Dutch part) | 1.2% | 2022 | down 98.8% | volatile |
| 104 | Sao Tome and Principe | 1.2% | 2022 | down 21.8% | volatile |
| 105 | Antigua and Barbuda | 1.2% | 2022 | up 2,875.0% | volatile |
| 105 | Vietnam | 1.2% | 2022 | down 59.2% | falling |
| 107 | Sweden | 1.2% | 2022 | down 73.6% | volatile |
| 108 | Pakistan | 1.2% | 2022 | down 72.4% | volatile |
| 109 | Pitcairn | 1.1% | 2022 | down 70.1% | volatile |
| 110 | Honduras | 1.1% | 2022 | up 46.8% | volatile |
| 111 | Indonesia | 1.1% | 2022 | down 38.0% | volatile |
| 112 | Madagascar | 1.1% | 2022 | down 24.1% | volatile |
| 113 | Ecuador | 1.1% | 2022 | down 70.5% | volatile |
| 114 | Estonia | 1.0% | 2022 | down 73.2% | volatile |
| 115 | Palestine | 1.0% | 2022 | down 43.9% | volatile |
| 116 | Colombia | 0.9% | 2022 | down 43.3% | falling |
| 117 | Portugal | 0.6% | 2022 | down 16.4% | volatile |
| 118 | Thailand | 0.6% | 2022 | down 23.7% | volatile |
| 119 | Tonga | 0.6% | 2022 | up 194.7% | volatile |
| 120 | Cambodia | 0.5% | 2022 | down 41.9% | volatile |
| 121 | Kenya | 0.5% | 2022 | down 48.5% | volatile |
| 121 | Lithuania | 0.5% | 2022 | down 77.5% | volatile |
| 121 | Montserrat | 0.5% | 2022 | up 8.3% | volatile |
| 124 | Solomon Islands | 0.5% | 2022 | down 37.0% | volatile |
| 125 | Palau | 0.5% | 2022 | up 138.1% | volatile |
| 125 | Guernsey | 0.5% | 2022 | up 2.0% | volatile |
| 127 | Mozambique | 0.5% | 2022 | down 55.5% | volatile |
| 127 | Tunisia | 0.5% | 2022 | down 56.2% | volatile |
| 129 | Israel | 0.5% | 2022 | up 181.2% | volatile |
| 130 | Greece | 0.4% | 2022 | down 2.4% | volatile |
| 131 | Myanmar | 0.4% | 2022 | down 81.8% | volatile |
| 132 | Philippines | 0.3% | 2022 | down 62.2% | falling |
| 133 | Jersey | 0.3% | 2022 | down 98.1% | volatile |
| 134 | Kuwait | 0.3% | 2022 | down 33.3% | volatile |
| 135 | Egypt | 0.3% | 2022 | down 65.9% | volatile |
| 135 | French Polynesia | 0.3% | 2022 | down 91.9% | volatile |
| 137 | Azerbaijan | 0.3% | 2022 | down 78.9% | volatile |
| 138 | Cuba | 0.3% | 2022 | down 87.6% | volatile |
| 139 | Saint Helena | 0.2% | 2022 | down 86.1% | volatile |
| 140 | Saint Kitts and Nevis | 0.2% | 2022 | up 9.1% | volatile |
| 141 | Tanzania | 0.2% | 2022 | down 59.6% | volatile |
| 142 | New Caledonia | 0.2% | 2022 | up 15.8% | volatile |
| 143 | Seychelles | 0.2% | 2022 | down 8.7% | volatile |
| 143 | Turks and Caicos Islands | 0.2% | 2022 | down 75.3% | falling |
| 145 | Niue | 0.2% | 2022 | up 100.0% | volatile |
| 146 | Reunion | 0.2% | 2022 | up 11.8% | volatile |
| 146 | Bonaire Sint Eustatius and Saba | 0.2% | 2022 | down 80.2% | volatile |
| 148 | Iran | 0.2% | 2022 | down 56.4% | volatile |
| 148 | Iraq | 0.2% | 2022 | down 97.9% | volatile |
| 148 | Turkmenistan | 0.2% | 2022 | down 79.5% | volatile |
| 151 | Algeria | 0.2% | 2022 | down 87.1% | volatile |
| 152 | Bahamas | 0.1% | 2022 | down 70.6% | falling |
| 152 | Syria | 0.1% | 2022 | down 94.1% | volatile |
| 152 | East Timor | 0.1% | 2022 | down 82.1% | volatile |
| 155 | Aruba | 0.1% | 2022 | down 79.4% | volatile |
| 155 | Curacao | 0.1% | 2022 | down 85.4% | volatile |
| 157 | Italy | 0.1% | 2022 | down 71.1% | volatile |
| 157 | Poland | 0.1% | 2022 | down 96.4% | volatile |
| 159 | Dominican Republic | 0.1% | 2022 | down 82.9% | volatile |
| 159 | Puerto Rico | 0.1% | 2022 | down 89.7% | volatile |
| 159 | Cook Islands | 0.1% | 2022 | down 82.4% | volatile |
| 162 | Libya | 0.1% | 2022 | down 50.0% | volatile |
| 162 | Qatar | 0.1% | 2022 | down 56.5% | volatile |
| 164 | Kiribati | 0.1% | 2022 | down 89.9% | volatile |
| 165 | Mauritius | 0.1% | 2022 | down 65.2% | volatile |
| 167 | Haiti | 0.1% | 2022 | down 93.9% | volatile |
| 167 | Samoa | 0.1% | 2022 | down 96.1% | volatile |
| 169 | Bahrain | 0.1% | 2022 | down 89.4% | volatile |
| 169 | Cayman Islands | 0.1% | 2022 | down 37.5% | volatile |
| 169 | Croatia | 0.1% | 2022 | down 87.2% | volatile |
| 169 | Jamaica | 0.1% | 2022 | down 44.4% | volatile |
| 169 | Tuvalu | 0.1% | 2022 | down 44.4% | volatile |
| 169 | Norfolk Island | 0.1% | 2022 | down 44.4% | volatile |
| 176 | Northern Mariana Islands | 0.0% | 2022 | up 300.0% | volatile |
| 176 | Anguilla | 0.0% | 2022 | up 100.0% | volatile |
| 176 | Tokelau | 0.0% | 2022 | down 89.5% | volatile |
| 176 | Cocos Islands | 0.0% | 2022 | down 60.0% | volatile |
| 180 | Lebanon | 0.0% | 2022 | down 97.1% | volatile |
| 180 | British Virgin Islands | 0.0% | 2022 | down 40.0% | volatile |
| 180 | United States Virgin Islands | 0.0% | 2022 | down 96.1% | volatile |
| 180 | Wallis and Futuna | 0.0% | 2022 | down 83.3% | volatile |
| 184 | Cyprus | 0.0% | 2022 | down 71.4% | volatile |
| 184 | Guam | 0.0% | 2022 | down 33.3% | volatile |
| 186 | Bermuda | 0.0% | 2022 | down 75.0% | volatile |
| 186 | Comoros | 0.0% | 2022 | down 97.1% | volatile |
| 188 | American Samoa | 0.0% | 2022 | down 100.0% | volatile |
| 188 | Belgium | 0.0% | 2022 | down 100.0% | volatile |
| 188 | Monaco | 0.0% | 2022 | down 100.0% | volatile |
| 188 | Singapore | 0.0% | 2022 | down 100.0% | volatile |
| 188 | Slovenia | 0.0% | 2022 | down 100.0% | volatile |
| 188 | Christmas Island | 0.0% | 2022 | down 100.0% | volatile |
About this data
Chlorophyll-a deviations, remote sensing (%)