 The study reviews evidence of the impacts of climate change on marine ecosystems, including changes in species distribution, abundance and phenology. The findings suggest that general trends are consistent with expectations from climate change, but the volume and type of evidence varies across ocean regions and taxonomic groups. Most investigations have focused on temperature changes, while few have examined effects of changing oxygen, wave climate, precipitation, or ocean acidification. Observations of species responses linked to anthropogenic climate change are widespread, but lacking for some taxonomic groups. This article was authored by Elvira S. Polluxanska, Elvira S. Polluxanska, Michael T. Burroughs and others.