Blue and Green: Ocean waves larger than 3 metres in height can travel hundreds of kilometres below the ice before dispersing, scientists have shown. These higher waves have been gradually breaking up the surface of sea ice, highlighting the importance of monitoring sea storms. A New Zealand-led team has been running experiments off the coast of Antarctica, placing sensors along inward routes following the dispersal of the waves. At the ice edge, its quite noisy, Alison Kohout, leader of the team based out...