Earth Science System Data (ESSD) is a free, online, peer reviewed journal that publishes original data sets for other members of the scientific community to use. Edited by and for scientists around the globe, ESSD endeavors to, "make data sets a reliable resource to build upon and to reward the authors by establishing priority and recognition through the impact of their articles." Thus, ESSD hopes to both consolidate and promote open data as well as incentivize the publication of open data. Published since 2009, ESSD is frequently updated and covers all aspects of earth science. Recent articles provide data about the uses of different kinds of nitrogen-based synthetic fertilizer around the globe and about the changes in a Portuguese coastline over the past fifty years. Readers can browse and search through all previously published articles on this website.