Progress on black carbon (BC) and solutions for combatting it

IMO’s Pollution Prevention and Response (PPR) sub-committee held its 8th meeting. This was yet another crossroads for the discussion on black carbon (BC), hinging on the question of what to do next. For a long while, it seemed that no decisions could be made given the prevailing view, namely that BC would be controlled through the HFO ban in the Arctic. It looked as if the last 11 years of discussions and investigations had been in vain.