“2-yr mean citedness” is the OpenAlex field summary_stats.2yr_mean_citedness (CC0): mean citations per paper over a two-year window. It is a raw bibliometric field, not a journal rating, and is not used for default ranking.
Environmental Science3Agricultural and Biological Sciences1Business, Management and Accounting1Earth and Planetary Sciences1Economics, Econometrics and Finance1Geography. Anthropology. Recreation: Environmental sciences1