Satellites spy Antarctic 'upside-down ice canyon’ in ice shelf due to warm water from deep ocean melting out the canyon. If the melting continued unabated, it would break the ice shelf in 40-50 years, not the 200 years currently projected, finds new study published in Geophysical Research Letters.

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Satellites spy Antarctic 'upside-down ice canyon’ in ice shelf due to warm water from deep ocean melting out the canyon. If the melting continued unabated, it would break the ice shelf in 40-50 years, not the 200 years currently projected, finds new study published in Geophysical Research Letters.