By Helen Regan, CNN – CNN.COM
(CNN)The South Pole has been warming at more than three times the global average over the past 30 years, a new study has found. That could have huge implications for the melting of Antarctic ice sheets, marine life in the region and the rising of global sea levels.
The scientists said the main cause of the warming was increasing sea surface temperatures thousands of miles away in the tropics. Over the past 30 years, warming in the western tropical Pacific Ocean — a region near the equator north of Australia and Papua New Guinea — meant there was an increase in warm air being carried to the South Pole.