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.
  • High Visibility: indexed within RePEc, and many other databases.
  • 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.
  • From 1 April 2021 to 31 December 2021, all submissions (once accepted after peer review) to Challenges will be waived APC, please kindly submit your paper before this deadline.
  • Ranking: Our ambition is to be indexed in Scopus and Web of Science by 2023, and to improve the ranking to top 25% of journals in the fields of multidisciplinary science and social science, interdisciplnary.
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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
Special Issue in Challenges
Challenges in Education/Higher Education during COVID-19 Guest Editor: Carol Nash
Deadline: 30 November 2021
Special Issue in Challenges
Challenges in Work and Employment during the COVID-19 Pandemic Guest Editors: Satu Kalliola, Tuula Heiskanen
Deadline: 15 December 2021
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