Today we’ll talk about a recent sight on the river that caught my attention and the attention of some other people too: what looked like white smoke pouring from a ship heading upriver. Turns out it has a much better explanation: it’s steam from scrubbers that are pulling pollutants out of the exhaust to meet new emissions standards enacted three years ago.

Today we’ll revisit the maritime industry game-changing regulation that cut certain damaging ship emissions in half: IMO 2020.