Findings that 'surprised' scientists show the Arctic could see ice-free summers as early as the 2030s, a decade earlier than previously thought
A new study published Tuesday in the journal Nature Communications found Arctic sea ice could disappear completely during the month of September as early as the 2030s. Even if the world makes significant cuts to planet-heating pollution today, the Arctic could still see summers free of sea ice by the 2050s, scientists reported. The researchers analyzed changes from 1979 to 2019, comparing different satellite data and climate models to assess how Arctic sea ice was changing.
There has already been a rapid loss of sea ice in the region, with September sea ice shrinking at a rate of 12.6% per decade, according to NASA. An Arctic with no summer sea ice would send dire ripple effects around the world. The bright white ice reflects solar energy away from the Earth. When this ice melts, it exposes the darker ocean, which absorbs more heat causing additional warming – a feedback process called “Arctic amplification.
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