Meltwater pours from a 130-meter-wide waterfall over the edge of the Nansen ice shelf in Antarctica on 12 January 2014. Credit: Won Sang Lee, Korea Polar Research Institute

“Instabilities and Thresholds in Antarctica (INSTANT)” is a new multidisciplinary, international research program that aims to tackle one of the grand challenges in climate science: resolving the Antarctic Ice Sheet´s contribution to future sea level rise. INSTANT scientists Florence Colleoni, Tim Naish, Robert DeConto, Laura De Santis and Pippa L. Whitehouse recently published an article about this in EOS features.