Arctic ice

New research has moved up the time by which the Arctic Ocean is predicted to be free of summer ice. A paper published Tuesday in the journal Nature has concluded that those northern waters could be open for months at a time as early…

<!-- -->It is a race to preserve this "ice memory (File)Scientists have succeeded in saving samples of ancient Arctic ice for analysis in a race against time before it melts away due to climate change, they said this week.The eight…