How we look kilometers below the Antarctic ice sheet | Dustin Schroeder

Antarctica is a vast and dynamic place, but radar technologies -- from World War II-era film to state-of-the-art miniaturized sensors -- are enabling scientists to observe and understand changes...

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I'm a radio glaciologist.That means that I use radar to study glaciers and ice sheets.And like most glaciologists right now,I'm working on the problem of estimatinghow much the ice is going to contribute to sea level rise in the future.So today, I want to talk to you aboutwhy it's so hard to put good numbers on sea level rise,and why I believe that by changing the way we think about radar technologyand earth-science education,we can get much better at it.When most scientists talk about sea level rise,they show a plot like this.This is produced using ice sheet and climate models.On the right, you can see the range of sea levelpredicted by these models over the next 100 years.For context, this is current sea level,and this is the sea levelabov...