Science
Arctic sea ice is being increasingly melted from below by warming Atlantic water – Australian Times
While atmospheric heat is the dominant reason for melting in the summer, it has little influence during the cold dark polar winter. However, the ocean warms the ice from below year-round.
Tom Rippeth, Bangor University
Each September, scientists like me look out for the point when the Arctics meagre summer fizzles out and sea ice begins to grow once more. This point is known as the annual sea ice minimum extent. It has declined consistently over the past 15 years, and 2019 was the second lowest after 2012 in 42 years of continuous satellite records. This years minimum is imminent, and there is already even less ice coverage than last year.
Denis Burdin / shutterstock
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