Challenges (ISSN 2078-1547) is a scientific peer-reviewed open access journal for research proposals and open problems published semiannually online by MDPI. inVIVO Planetary Health is affiliated with Challenges.
  • Open Access—free for readers, with article processing charges (APC) paid by authors or their institutions.
  • Rapid Publication: manuscripts are peer-reviewed and a first decision provided to authors approximately 17.4 days after submission; acceptance to publication is undertaken in 2.7 days (median values for papers published in this journal in the second half of 2020).
  • Recognition of Reviewers: reviewers who provide timely, thorough peer-review reports receive vouchers entitling them to a discount on the APC of their next publication in any MDPI journal, in appreciation of the work done.
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Special Issue in Challenges
From Grey and Green Hydrogen to Blue Hydrogen: Zero Emission Buildings and Industrial Sites Guest Editors: Sofoklis Makridis, Panagiota Pimenidou
Deadline: 30 June 2021
Special Issue in Challenges
Project Earthrise: For the World We Want to Live In (including Manuscripts from the 2020 inVIVO Planetary Health Annual Conference) Guest Editors: Susan L. Prescott, Ganesa R. Wegienka, Nicole Redvers, Jake Robinson
Deadline: 31 October 2021
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