Study by .@UMAS_15 and .@UCL_Energy finds optimising port waiting times could reduce dry bulker emissions by 10% The study finds that these ships spend between 4-6% of their operational time, around 15-22 days per year, waiting at anchor outside ports before being given a berth. Read the full story on Dry Bulk! https://t.co/0uO1ANxVDg https://t.co/aErpCMPbPk https://t.co/w9g9lQm8ql.