United States of America (USA)

Time frame: 1 October 2022 - 30 September 2023


Position by research output Share

Global North America
Overall 2 1

Position by research output Share in subject areas

Global North America
Biological sciences 1 1
Chemistry 2 1
Earth & environmental sciences 2 1
Health sciences 1 1
Physical sciences 2 1


Overall research output

Count Share
Overall 28915 20150.53

Overall Count and Share for 'United States of America (USA)' based on time frame mentioned above, both domestically and internationally.

View all articles

Research outputs by subject area

Subject Count Share
Biological sciences 10016 7312.99
Chemistry 6095 4414.89
Earth & environmental sciences 3547 2227.35
Health sciences 6931 8374.05
Physical sciences 7384 4604.61

Note: Articles may be assigned to more than one subject area. Hover over the donut graph to view the Share for each subject.

Share output for the past 5 years

Compare with other countries/territories

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Collaboration by percentage of Share

Country Share
China 26.7%
UK 13.9%
Germany 13.1%
Canada 10.4%
France 7.9%
Japan 6.5%
Switzerland 5.5%
Italy 5.5%
Australia 5.4%
Spain 5.2%

Note: Hover over the graph to view collaboration by percentage of Share.

Top 10 collaborators with United States of America (USA) by Share

Top 10 institutions from United States of America (USA) by Share

country Count Share
1. Harvard University 3625 1122.27
2. Stanford University 1924 504.26
3. Massachusetts Institute of Technology (MIT) 1949 476.96
4. National Institutes of Health (NIH) 1144 401.26
5. University of Michigan (U-M) 1352 377.97
6. Yale University 1362 352.87
7. University of Pennsylvania (Penn) 1113 341.93
8. Cornell University 1044 317.92
9. Columbia University in the City of New York (CU) 1180 312.09
10. University of California, San Diego (UC San Diego) 1022 312.04

Latest supplement

Nature Index 2023 Climate and Conservation

Climate and conservation scientists are bringing real progress to the fight against global warming, despite political and funding obstacles. But greater support for strategic, multidisciplinary research is needed, if the world wants to improve its performance on the United Nations’ Sustainable Development Goals (SDGs).