Sediment samples were collected from the seafloor in the Lincoln Sea, part of the “Last Ice Zone”. They showed that sea ice in the region melted in the summer about 10,000 years ago. The research team concluded that summer sea ice was melting at a time when temperatures were approaching the levels we are rapidly approaching today.
Melting ice in the Lincoln Sea during the summer can have serious consequences on the climate: the sea will absorb ten times more solar energy, thereby increasing global warming. Also, it can affect ecosystems.
How soon that will happen is not yet known, but it will only happen in the coming decades.
Source: Ferra
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