TY - JOUR TI - Structuring cumulative effects assessments to support regional and local marine management and planning obligations AU - Willsteed, E AU - Birchenough, S AU - Gill, A AU - Jude, S T2 - Marine Policy AB - Cumulative effects assessments are a legal requirement in many jurisdictions and are key to informing marine policy. However, practice does not yet deliver fit-for-purpose assessments relative to sustainable development and environmental protection obligations. The complexity of cumulative effect questions, which are embedded in complex social-ecological systems, makes multiple, methodologically diverse assessments a necessity. Using the expansion of marine renewable energy developments in European Union waters as a case study, this paper explores how social-ecological systems thinking and cumulative effects assessment theory can combine to structure CEAs that better support the management and regulation of maritime activities at regional scales. A general perspective for cumulative effects assessment is proposed to remove ambiguity of intent and to orient assessments towards a common objective. Candidate principles for practice are presented for consideration. These principles are integrated into a stepped assessment approach that seeks to improve cumulative effects assessments of localised activities relative to the information needs of decision-makers implementing the ecosystem approach. DA - 2018/12// PY - 2018 VL - 98 SP - 23 EP - 32 UR - https://www.sciencedirect.com/science/article/pii/S0308597X18305256 DO - 10.1016/j.marpol.2018.09.006 LA - English KW - Marine Energy KW - Human Dimensions KW - Environmental Impact Assessment KW - Legal & Policy ER -