Georgina Falster, University of Adelaide, School of Physics, Chemistry and Earth Sciences, Adelaide, SA, Australia, Nicholas McKay, University of Arizona, Tucson, United States, Alyssa R. Atwood, Florida State University, Earth, Ocean, and Atmospheric Sciences, Tallahassee, United States, Chris Hancock, Northern Arizona University, School of Earth and Sustainability, Flagstaff, United States, Ben J Henley, University of Melbourne, Parkville, Australia, Matthew Jones, University of Nottingham, School of Geography, Nottingham, United Kingdom, Nikita Kaushal, American Museum of Natural History, Earth and Planetary Sciences, New York, United States, Mariano Morales, El Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales, Mendoza, Argentina, Anais Orsi, University of British Columbia, Vancouver, BC, Canada, Santosh Shah, Birbal Sahni Institute of Palaeosciences, Quaternary, Lucknow, India, Lily Smyth, University of Nottingham, Nottingham, United Kingdom and Hydroclimate2k Project Members