From PBS Terra.

If all of Antarctica’s ice melted, our coastlines would be drastically altered. Fortunately, that’s not going to happen anytime soon, but new evidence suggests that West Antarctica – which holds around 5 METERS of sea level rise – is melting a lot faster than scientists once thought. And, a new study warns of a sinister threat buried deep beneath the melting ice – one that may cause a feedback loop that speeds up the melt of the already precarious West Antarctic ice sheet. Stay tuned to find out what new maps reveal about the under-ice world of Antarctica, and how a tiny octopus can help us understand the South Pole’s ice-free past.

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