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Table 4 Number of articles on climate change related to the countries’ CO2 emission in billion tons (threshold 300 articles), countries are ranked by RCO2 = number of articles/CO2 emission in billion tons [40]

From: Climate change: Does international research fulfill global demands and necessities?

Country Articles CO2 in bn t RCO2
Sweden 1215 41.50 29.28
Switzerland 1126 40.07 28.10
Denmark 795 34.55 23.01
Norway 917 44.79 20.47
New Zealand 523 36.01 14.52
United Kingdom 5524 384.71 14.36
Finland 637 45.96 13.86
Netherlands 1595 164.05 9.72
Austria 668 69.94 9.55
Australia 3349 413.09 8.11
Portugal 429 54.86 7.82
Canada 3126 572.78 5.46
Spain 1458 281.42 5.18
Belgium 503 100.12 5.02
France 1724 356.30 4.84
Greece 316 76.00 4.16
Germany 3238 799.37 4.05
Italy 1300 355.45 3.66
United States 12,637 5269.53 2.40
South Africa 733 456.33 1.61
Brazil 688 476.07 1.45
Mexico 501 490.29 1.02
South Korea 621 616.10 1.01
Japan 1106 1205.06 0.92
Turkey 305 447.90 0.68
India 1300 2466.77 0.53
Iran 339 672.31 0.50
China 3508 9838.75 0.36
Russia 488 1692.79 0.29