Journal profile
Challenges
ISSN 2078-1547 · MDPI AG · Switzerland
Challenges: fully open access; APC charged, amount not published; review about 11 weeks (community reports); 57 articles in 2025.
Scope
Aims, scope and focus
Challenges is published by MDPI AG. By OpenAlex counts of its recent articles, its largest topics are Climate Change and Health Impacts, Sustainability in Higher Education and Sustainability and Climate Change Governance, together about 20.4% of its articles. (generated from OpenAlex topic counts and CAS ranking data)
Main research topics OpenAlex counts of recent articles; shares are approximate
- Climate Change and Health ImpactsEnvironmental Science7.5%
- Sustainability in Higher EducationSocial Sciences6.9%
- Sustainability and Climate Change GovernanceEnvironmental Science6%
- Zoonotic diseases and public healthMedicine5.7%
- Climate Change Communication and PerceptionSocial Sciences4.8%
- Ecocriticism and Environmental LiteratureArts and Humanities4.8%
- Environmental and Cultural Studies in Latin America and BeyondEnvironmental Science4.5%
- Disaster Management and ResilienceSocial Sciences4.2%
Rankings & indexing
CAS ranking and database indexing
CAS Journal Ranking
CAS Journal Ranking, upgraded edition (March 2025)Not covered
Not covered by this edition.
CAS Xinrui Journal Ranking (March 2026)Not covered
Not covered by this edition.
CAS Journal Ranking, previous upgraded edition (December 2023)Not covered
Not covered by this edition.
Database indexing
DOAJLetPub
International journal early-warning lists: not listed in any editionLetPub
Editions, and major and minor categories, are shown separately and never merged into one zone; check which edition your institution uses before you submit or report.
Metrics
Impact metrics and publication volume
Impact
- h-index
- 44OpenAlex ·
- i10-index
- 205OpenAlex ·
- 2-year mean citedness
- 3.1OpenAlex ·
- Share of gold OA articles
- 0%LetPub ·
Articles by year OpenAlex count · 570 in total · the current year is incomplete
| Year | Articles | Open access | Citations |
|---|---|---|---|
| 2026 | 41 | 41 | 1,016 |
| 2025 | 57 | 57 | 1,328 |
| 2024 | 48 | 48 | 1,228 |
| 2023 | 55 | 55 | 1,234 |
| 2022 | 69 | 69 | 949 |
| 2021 | 35 | 35 | 1,029 |
Sources count differently and were observed at different times, so each source's own value is kept; "publisher" marks figures from the journal's website.
Review & acceptance
Review time and acceptance
- Average review time (community reports)
- about 11 weeksLetPub ·
- Submission to publication (journal-reported)
- about 6 weeksDOAJ ·
- Peer review
- Single anonymous peer reviewDOAJ
Community reports come from authors' own submissions (confidence 0.5) and are not a promise from the journal; for publisher figures, the journal's own definitions apply.
Fees & open access
APC and open-access policy
Fully open accessDOAJ
Every article is open access; authors usually pay an article processing charge (APC).
| Source | APC | Fee waiver | License | Observed |
|---|---|---|---|---|
| DOAJ | CHF 1,400 | Yes | CC BY | |
| OpenAlex | CHF 1,400 | — | — | |
| LetPub | CHF 1,400 | Yes | — |
The journal's website is authoritative for fees; sources were observed at different times and each keeps its own value, without averaging.
Profile
Publication details and official links
- Publisher
- MDPI AG
- Country or region
- Switzerland
- Language
- English
- ISSN
- 2078-1547
- Official links
- Journal homepage ↗DOAJ
- Author guidelines ↗LetPub
- Aims & Scope ↗LetPub
- APC information ↗DOAJ
- Fee waivers ↗DOAJ
- Open access statement ↗DOAJ
- License & copyright ↗DOAJ
- Peer review process ↗LetPub
- Editorial board ↗LetPub
- Plagiarism policy ↗DOAJ
FAQ
Frequently asked questions about Challenges
How long does peer review take at Challenges?
Authors report an average review time of about 11 weeks. Article statistics cover accepted papers only, publisher figures follow the journal's own definitions, and community reports come from authors' own submissions; none is a promise from the journal.
Which databases index Challenges?
According to LetPub and DOAJ records, Challenges is indexed in DOAJ.
Is Challenges open access, and what is the APC?
Challenges is a fully open-access journal. APC charged, amount not published.
Sources and updates
The facts on this page come from LetPub, OpenAlex, DOAJ; every figure is tagged with its source and the date it was observed, and conflicting values are kept per source. LetPub source page: view ↗ (archived 2026-08-26). Last updated: .