Open Access statistics for Sierra Club, United States, covering academic research published from 2000 to 2025. Read More.
Open Access Percentage
58%
Total
Publications
199
Total Open
Publications
115
Total
Citations
3.1K
Open Access
Percentage
58%
Total
Publications
199
Total Open
Publications
115
Total
Citations
3.1K
Breakdown
Publisher Open
29%
Both
22%
Other Platform Open
6%
Closed
43%
Percentage of Open Access over time
Publisher Open
Both
Other Platform Open
Closed
Volume of Open Access over time
Open
Closed
Publisher Open
OA Journal 39%
39
Hybrid 29%
29
No Guarantees 32%
32
Other Platform Open
Institution 71%
40
Domain 32%
18
Other Internet 27%
15
Preprint 5%
3
Public 4%
2
Other Platform Locations
Name | Platform Type | Publications |
|---|---|---|
doaj.org OAI-PMH Repository | Institution | 25 |
PubMed Central | Domain | 20 |
DOI | Other Internet | 12 |
Office of Scientific and Technical Information | Institution | 5 |
LA Referencia | Institution | 5 |
Unknown Repository | Other Internet | 4 |
University of Arizona | Institution | 3 |
arXiv | Preprint | 3 |
University of Turku | Institution | 2 |
Universidad de Huelva | Institution | 2 |
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