Green Open Access


Postprints (peer-reviewed author version of an article) are a cost-effective way to enable access to the latest research ('Green Open Access’), but some publishers deny authors the right to share postprints or place them under unnecessary embargoes. Journals depend entirely on the value donated to them by the research community, however, and will be forced to respond if a critical mass of researchers declare their intention to exclusively support postprint-friendly journals. By joining this campaign, you will pledge to share postprints and only review for journals that explicitly allow postprint sharing without embargo. As with all our campaigns, your pledge will not go into effect until a critical mass of your peers have signed the same pledge (choose your own threshold when you pledge).


  1. Every time you publish an article closed access (i.e., in a paywalled journal), deposit the final peer-reviewed preprint (i.e., 'postprint') in an indexed repository immediately (i.e., without embargo)
  2. Every time you review, only review for journals that allow preprints and postprints to be shared without embargo (i.e., 'Green' journals on Sherpa/Romeo)
I pledge to uphold the above Criteria if and when the signatories to this campaign equate to the following proportion of impact in my research field (see the 'About' page for calculation details). You can adjust this setting at any time during beta development. Note that selecting 0% means your pledge will activate immediately.
Chosen value: 50
This pledge will apply to research outputs for which I am an author in the following position/s (only select positions for which you are sure you will be able to comply with the pledge). You can change this setting at any time during beta development.
By signing this pledge I consent to being contacted about this campaign and having my name displayed on the website when my pledge activates. The toggle below will determine whether my name is displayed on the website prior to my pledge activating:
Sign the pledge