TradeWinds' interest was piqued by a headline in the UK Independent daily this week revealing shipowners have been availing themselves of "cheat devices" to dump pollution into the oceans and avoid IMO 2020 rules.

What could this dastardly piece of equipment be? Was it a new "magic pipe" scandal in the making?

Well, no, as you've probably guessed, these fiendish companies were using a little-known system called a "scrubber".