songbird wrote:
from the Scientific American special edition
titled _The End_

p. 23 acid rain returns from nitrogen emissions
coal fired power plants, cars and then farming
listed.

p. 72 bunker fuel (never heard of it before)
burned by tankers at sea. if the international
shipping industry were considered a country
it would rank sixth behind Japan and in front
of Germany in terms of green house gas emissions.


songbird

Bunker fuel is a very thick low grade of petroleum used in very large
engines such as ships have. When spilled at sea it forms tar balls. When
burned it makes CO2 etc the same as burning other petroleum. It may also
have a fair amount of sulphur which is a pollutant when burned.

I suppose they have to list shipping separately otherwise the countries that
host flags of convenience would get dudded.

David