## Methodology - GHG emissions per capita
The average GHG emissions per capita in CO2-equivalent is 7.0 tonnes with a standard deviation of 6.8 tonnes. The higest value is 47.5 tonnes (Jamaica) and the lowest one is 0.3 tonnes (Burundi). ### For countries
__above__ the mean the points for the score-bar are calculated as follows:
With the calculated mean and standard deviation an assumed normal
distribution has been calculated. The probability of a value equals the
minus-points, i.e. a probability of 67% equals 33 points (100 - 67). ### For countries
__below__ the mean the points for the score-bar are calculated as follows:
As zero emissions reflects the absolute minimum this value should be
100 points. The average per capita emissions should equal 50 points.
This means that for every 0.14 tonnes a minus-point is given. This
method has been chosen as otherwise a country with no emissions would
just get about 85 points when applying the assumed normal distribution
method. This would not reflect the good performance of the country in
that area. ### Source
United Nations:
last update June 2005 |