Fig 1.
Annual number of policy documents and climate change policy documents.
Fig 2.
Percentage of (climate change) policy documents per sector.
Fig 3.
Number of policy documents and percentage of climate change policy documents on the institutional basis (Spearman rank correlation = 0.55; an interactive version can be viewed at: https://s.gwdg.de/2dC41E).
Fig 4.
Document type of papers cited by policy documents (all policy documents and climate change policy documents).
Fig 5.
Proportion of accumulated citations of scientific papers in (climate change) policy documents over time.
The publication year differences are the time between publication year of the policy document and publication year of the scientific paper.
Fig 6.
Correlation between number of climate change policy document citations received by papers in various scientific journals and number of Scopus papers published in these journals (Spearman rank correlation = 0.24; an interactive version can be viewed at: https://s.gwdg.de/k9Wp07).
Fig 7.
Number of papers with at least one policy citation grouped by CiteScore quartile of the journal.
In the first journal quartile, e.g., are those journals that belong to the 25% of the journals with the highest CiteScore in their subject areas. For about 7% of the journals, a CiteScore was not available.
Fig 8.
Average citations per paper of climate change papers in the scientific literature that are cited in policy documents (solid lines) or not (dotted lines).
Fig 9.
Correlation between the journal-based number of climate change policy document citations and Scopus citations.
The size of the circles reflects the CiteScore of the journals (Spearman rank correlation = 0.81; an interactive version can be viewed at: https://s.gwdg.de/4weLvb).
Fig 10.
Overlay maps visualizing field-specific clusters of papers (based on citation relations).
The maps include (1) all papers, (2) climate change papers, (3) climate change papers with at least one policy citation, (4) all papers in Scopus with at least one policy citation.
Fig 11.
Fields of papers cited in policy documents (an interactive version with all ASJC27 fields is available at: https://s.gwdg.de/QTl1nm).
Table 1.
Policy sources with the highest number of policy documents (sorted by the number of policy documents).
The table also reveals the number of scientific papers cited by these institutions and the number of climate change papers (the number in brackets is the number of policy documents citing the climate change papers).
Table 2.
Policy sources with the largest number of climate change papers cited.
The table shows policy sources that cited more than 4.000 papers.
Table 3.
Types of policy sources most productive in publishing policy documents citing papers related to climate change research.
The table differentiates between all documents of the sources citing these papers and documents focussing on climate change.
Table 4.
Scientific institutions with the highest number of papers cited in policy documents.
The table includes all institutions with more than 2000 papers cited.