As part of WP5, we are aiming to identify the risks and pressures to ecosystem services in the ATLAS case study areas from existing and potential future economic activity and ocean dynamics. To achieve this we are carrying out a Delphi study with all ATLAS partners to probe for information on risks and pressures to sensitive Atlantic ecosystems. The Delphi method relies on a panel of experts to gather information; this is often due to limited knowledge on the service or good. The technique gathers expert opinion, usually in an iterative, anonymous survey with feedback. The objective is to allow information produced by an expert group to be evaluated, building consensus over time. The survey is sent around twice or more. In the second round, the information regarding the results of the first round are distributed in order to allow the expert to re-evaluate their previous assessment and to see if there may be some more agreement or convergence regarding the issue surveyed. As part of the WP5 session, we are asking you all to complete the first round of the ATLAS Delphi Study. Claire Armstrong will provide background information on the survey and this will be followed by a practical session. Other members of WP5 will be available to answer questions during the session.