Changing carbon: Ice cores and proxies
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Eric uses ancient ice to learn about climates past. He and his team spend ten weeks in chilly Antarctica, drilling deep into the polar ice. Once they’ve extracted the cores, they transport them to the laboratory in Cambridge for analysis. The content of trapped air bubbles, the amount of salt in the ice and other measurements reveal clues about the climate when the ice was formed. Eric works with experts around the world to unravel these clues and build up a picture of past climate changes. ‘Working out how our planet worked in the past gives us more confidence in predicting how it will behave in future,’ says Eric.