they describe the current situation and indicate what the situation in might be what physical and biological impacts may emerge and how these changes might affect the economic potential of oceanbased activities it is important to note the interconnections between the drivers and changes addressed in each subsection by way of illustration rising c emissions contribute to rising ocean acidification which in turn affects certain marine creatures and further compounded by eg ocean warming pollution and ultimately the ocean s biomass the strongest warming trends have been found at high latitudes rhein et al