b'FOGHORN FOCUSClearing the DeckTHE ROLE OF DIESEL PARTICULATE FILTERS FOR CLEANER MARINE OPERATIONSPETER ELLISON // RYPOSF romthebustlingportsofCaliforniatosereneharborsacrosstheglobe,marinevesselsofallkindsareindispensabletocommerceandtravel.Yet,hiddenwithinthehumofenginesliesasilentthreat:dieselparticulatematter(DPM).Theharmfulmatterisreleasedfromtheenginesofshipsandduringpowergeneration,withrepercussionsextendingbeyondtheharbor, adverselyaffectingthehealthoflocalpopulationsandmakingaconcerningcontributiontoglobalwarming.PHOTO: ABHI VERMA/ UNSPLASHFOGHORN 8'