Belgian architect Vincent Callebaut envisions a solution for the year 2100—when scientists predict that global warming and rising sea levels will result in more than 50 million human refugees.

This issue’s interactive end page features the conceptual architecture of the Belgian artist Vincent Callebaut. Envisioning a future where humans will be run off the land by rising sea levels, he has devised a beautiful future for human society—on lily pad-like structures.