IMO is joining its partner UN agencies for the Joint Group of Experts on the Scientific Aspects of Marine Environmental Protection (GESAMP) 41st session (1 to 4 September) at World Maritime University in Malmö, Sweden. Items on the agenda include: evaluation of hazards of harmful substances carried by ships; review of applications for “active substances‟ in ballast water management systems; scientific review of mercury and its compounds and threats to the marine environment; trends in global pollution in coastal environments; global assessment of micro-plastics in the environment. An open seminar on “Maritime activities and noise: Sources and Impacts” will be live-streamed on 3 September.