This year it is once again possible to upload your General Assembly oral presentations and posters for online publication alongside your abstract, giving all participants a chance to revisit your contribution. Files can be in either PowerPoint or PDF format. Note that presentations will be distributed under the Creative Commons Attribution 3.0 Licence. The upload of your presentation is free of charge and is not followed by a review process. All legal and technical information as well as the upload form are available here. You will need to log in using your Copernicus Office User ID [using the ID of the Corresponding Author].