Scientists can extract a wealth of information by drilling thousands of meters down into earth’s massive continental ice sheets and extracting ice cores. By examining the cores, they can go back in time to periods much colder and considerably warmer than today.
Jeff Severinghaus from Scripps Institution of Oceanography describes how he delves into earth’s climate past and what he’s learned. “Humans have changed the atmosphere due to burning fossil fuels and you see that very clearly in the ice core records,” he explains. While we may not see dramatic climate changes during our lifetimes, our grandchildren most certainly will.
Don’t miss this eye-opening look into our past — and our future.
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