I remember debating folks about climate change a while back, from the perspective of managing unknown risks. So much of what could happen or what is projected a

I remember debating folks about climate change a while back, from the perspective of managing unknown risks. So much of what could happen or what is projected about the influence of Antarctic glaciers on global sea level rise depends on things like subglacial ice flow dynamics, which we simply have no idea about. And now we have evidence for a 1-km deep canyon directing freshwater flows under the ice. It's amazing.