
While international negotiations to reduce greenhouse gas (GHG) emissions have been less than satisfactory, there is a presumption that a significant level of multi-lateral commitment will be realized at some point. International air and marine travel have been left to one side...

International air and marine travel have been left to one side in past negotiations to reduce greenhouse gas (GHG) emissions but, unless something is done, emissions from this segment of the world economy will form a progressively larger percentage of the total, especially as...