It's Back to the Future — By About 300 Million Years!

onSep 8, 2007 @ 08:24 PDT

The emerging story of a global climate shift a third of a billion years ago seems to be a prequel to what climate scientists expect from the current trend in global warming.

Using the same sort of Global Circulation Models as those which predict climate change today, University of Michigan researcher Christopher Poulsen and his colleagues have reproduced what might have happened on the supercontinent Pangea in the late Paleozoic era, about 300 million years ago, when the polar ice melted.

By Ross Gelbspan

Opinion

As the UN General Assembly Turns 80, Can Ordinary Citizens Change How the World Is Governed?

ByRich Wilson

onJan 19, 2026 @ 10:12 PST

Democratic innovation as a pathway for revitalising global climate action.

Danielle Smith Working With Trump Official Who Wants to Annex Greenland

ByMary Stuart

onJan 14, 2026 @ 13:41 PST

The Alberta premier belongs to a U.S. group called the Governors Coalition for Energy Security that’s led by Louisiana Gov. Jeff Landry, Trump’s envoy to Greenland.

Series: Inside MAGA’s Global Climate Agenda

Series: MAGA