The Arctic risks being having no sea ice during the summer by the 2030s, according to a new study. Previous estimates had the region losing sea ice during the warmer months a decade later, another warning that climate change is accelerating. The study, published Tuesday in the journal Nature Communications, compared satellite images and models from 1979 to 2019 to see how ice was changing and determined previous estimates of the sea ice decline had been too low. The data also showed that, even with significant, immediate cuts to pollution and emissions, the region will be sea ice-free in the s...

Science