Research funders from France, the United Kingdom, the Netherlands and eight other European nations have unveiled a radical open-access initiative that could change the face of science publishing in two years — and which has instantly provoked protest from publishers.

The 11 agencies, who together spend €7.6 billion (US$8.8 billion) in research grants annually, say they will mandate that, from 2020, the scientists they fund must make resulting papers free to read immediately on publication (see ‘Plan S players’). The papers would have a liberal publishing licence that would allow anyone else to download, translate or otherwise reuse the work. “No science should be locked behind paywalls!” says a preamble document that accompanies the pledge, called Plan S, released on 4 September.

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