Sierra Leone in the best or worst of environmental scenarios is not going to make or break the globe. Neither will Great Britain or Germany. China and India might due to growth and carbon use factors. However, even here we are dealing only with county-centric ideas.

Land area and hemisphere measures of various factors per population unit would make for a more interesting and pointed indicator of environmental footprint(s). Deep ocean areas might also be looked at to provide a number of baseline measures.

One time static measures of any sort are not usually very useful. Plot global trend charts. Take a series of snapshots using standard year intervals. Analyze the data through many different screens. Trends and their advantages and concerns will begin to emerge. Except in the extreme, this is not a competition between countries to be the bad-boy, hero of our environmental future. This is a scientific learning process that is ripe for useful discoveries.