Points of No Return

    Recently two research teams, working independently and using different methods, reached an alarming conclusion: The West Antarctic ice sheet is doomed. The sheet's slide into the ocean, and the resulting sharp rise in sea levels, will probably happen slowly. But it's irreversible. Even if we took drastic action to limit global warming right now, this particular process of environmental change has reached a point of no return.

Full text and e-editions are available to premium subscribers only. To subscribe to the digital edition, please visit subscription page. If you are already a subscriber, please login to the site.

We'd be happy to set up login information for a free week of the Liberal Opinion Week website for you. Please email liberal@iowaconnect.com with your request. Thanks for your interest in the Liberal!