The GC 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 3, 2020.
- Lok Bijaya Adhikari
- Kunihiko Arai
- Martin Archer
- Louise Arnal
- Denise Balmer
- Beth Bartel
- Ciaran Beggan
- Alessandro Benedetti
- Lonni Besancon
- Kathryn Boast
- Martin Bohle
- Paola Coratza
- Erin Coughlan de Perez
- Giuliana D'Addezio
- Paul Denton
- Peter Düben
- Tim Fedak
- Bernardo Feldman
- Carolina Garcia
- Hazel Gibson
- John Gordon
- John K. Hillier
- Laura Hobbs
- Charlie Hooker
- Christopher Jackson
- Stephanie Januchowski-Hartley
- Chris King (deceased)
- Jacco Konijn
- Sydney Lancaster
- Marie-France Loutre
- Chris Lowry
- Susanne Maciel
- Ana Matias
- Jun Matsumoto
- Gary McDowell
- Antonio Menghini
- Solmaz Mohadjer
- Rosella Nave
- Olivia Nesci
- Mariele Neudecker
- Toshimasa Ohara
- Dwight Owens
- Erica I. Parisi
- Karen Pascal
- Antti Pursula
- David Pyle
- Simone Rödder
- Michelle Salmon
- Simon Schneider
- Florian M. Schwandner
- Linda See
- david sergeant
- Christopher Skinner
- Mauro Soldati
- Arianna Soldati
- Elspeth Spence
- Mhairi Stewart
- John Taber
- Merryn Thomas
- Gianluca Valensise
- Schalk Jan van Andel
- José M. Vaquero
- Jan Verkade
- Hans Visser
- Graham Young
- Christos S. Zerefos