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 LatestYear 10-year changeTrend
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

Indicator
Chlorophyll-a deviation from the global average
Unit
%
Source
UN Statistics Division – processed by Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
193 places, 3,410 data points, 2005–2022
Last refreshed

Chlorophyll-a deviations, remote sensing (%)