The NPG editorial board, the European Geosciences Union, and Copernicus Publications thank the following colleagues very much for their work in reviewing the manuscripts published in the journal volume 22, 2015.
- K. D. Ahn
- Jeffrey Anderson
- Sergei I. Badulin
- Georgios Balasis
- Michael Banner
- Nicolas Bergeot
- Emanuele Bevacqua
- Archana Bhattacharyya
- Stephan Bialonski
- Craig H. Bishop
- Jacques Blum
- Tomas Bodnar
- Jochen Broecker
- Dave Broutman
- Maarten Buijsman
- Steven Böing
- Dibyendu Chakrabarty
- Gilbert Compo
- Colm Connaughton
- Christopher Cox
- Michel Crucifix
- Sönke Dangendorf
- Reik Donner
- Jörg Ebbing
- David Erickson
- Igor Esau
- Robert Ewing
- Christian Franzke
- Ana Freitas
- Jeffrey Freymueller
- Peter Frick
- Auguste Gires
- Bedartha Goswami
- Georg Gottwald
- Stephen Griffiths
- Chuncheng Guo
- Cheryl Harrison
- Hossein Hassani
- Emilio Hernández-García
- Yoshito Hirata
- Dan Hodyss
- Daniel Holdaway
- Christina Holt
- Kolumban Hutter
- Leonid Ivanov
- Fei Ji
- Peng Ji
- Wei Jiang
- Unnikrishnan Kaleekkal
- Andy Kass
- Matt King
- Kevin Lamb
- Peter Lelièvre
- Juan Manuel Lopez
- M. Nieves Lorenzo
- Valerio Lucarini
- Cristóbal López
- Jianwei Ma
- Nasser madani
- Marta Marcos
- Chloe Michaut
- Alejandro Muñoz-Diosdado
- I. Michael Navon
- Miguel Onorato
- Luigi Palatella
- Olivier Pannekoucke
- Salvatore Pascale
- Diego Pazó
- Efim Pelinovsky
- Vicente Perez-Munuzuri
- Thomas Peron
- R. S. Plant
- Raymond Pottelette
- Shiva P. Pudasaini
- Steven Ramp
- Jose M. Redondo
- Benno Rumpf
- Malcolm Sambridge
- Stefano Santini
- Nicola Scafetta
- Frédéric Schmidt
- François G. Schmitt
- David Schoellhamer
- Lev Shemer
- Nagendra Singh
- Alexey Slunyaev
- Michael Small
- Yury Stepanyants
- Semion Sukoriansky
- Wenke Sun
- Xu Sun
- Bruce Sutherland
- Juan Jose Taboada
- Olivier Talagrand
- Phanindra Tallapragada
- Neil Tandon
- Sujata Tarafdar
- Luciano Telesca
- Anastasios Tsonis
- Antonio Turiel
- Stéphane Vannitsem
- Panayiotis Varotsos
- Sébastien Verrier
- Werner von Bloh
- Graeme Wake
- Guiling Wang
- Hongli Wang
- Li-Pen Wang
- Jörn Warnecke
- Mozheng Wei
- Christopher Wolfe
- Scott Wunsch
- Qin Xu
- Amir Bijan Yasrebi
- Naiming Yuan
- Ilya Zaliapin (deceased)
- Milija Zupanski