Environmental group the Clean Arctic Alliance is calling for measures tackling underwater noise from ships to be made mandatory as the International Maritime Organization meets to consider the issue.

A paper submitted by Canada to the IMO’s meeting of the Sub-Committee on Ship Design & Construction (SDC) from 23-27 January proposes that work to amend the rules on underwater noise, last updated in 2014, be completed.

The IMO has previously instructed the SDC to identify steps and a programme of action to prevent and reduce underwater noise.