In assessing the role of countries as polluters, it is useful to look at how
much carbon dioxide emit, both overall and on average per citizen. WWF has
classified countries based on statistical information contained in the World
Resources Institute Yearbook for 1996/7. This relies on data from the Carbon
Dioxide Information Analysis Centre for 1992 for "industrial" sources -
that is excluding emissions from changes in land-use.
Column 4- This column looks at total emissions in 1992 by country
in three groups: 1) the large global polluters (more than 800 million metric
tons) scored red; 2) medium polluters (300-800 million metric tons) scored
yellow; and 3) low polluters (less than 300 million metric tons) scored green.
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