Agence France-Presse: Alongside scientists, lawmakers and businessmen, officials from more than 50 ports in 35 countries started a three-day meeting in the home of Europe’s largest harbour to talk about regulatory and technological ways of shrinking their contribution to global warming. But the setting of measurable common targets appeared to be a long way off as speakers differed on such basics as the maritime transport industry’s contribution to global greenhouse gas emission — put at anything from 1.4 …