Top 25 / Earth & environmental sciences
The leading institutions for high-quality science in the United States, ordered by weighted fractional count (WFC) for 2016. Also shown are WFC for 2012, the change in WFC between 2012 and 2016, and the 2016 article count (AC). The top 10 states are ranked by summing the WFC for all institutions in each state. The top 10 institutions in each state are shown (see A guide to the Nature Index, page S26).