In this map-based feature, gauge the scope and effects, both actual and potential, of the human "footprint" on our planet. To launch the interactive, click on the image at left.—Lexi Krock ...

How about before then, when Earth had just one supercontinent? Now you can find out. An interactive map developed by software engineer Ian Webster lets users track the locations of modern-day ...

Tied to Earth ... the interactive. Launching the interactive brings up a digital version of the magazine. Pinch to adjust the size as you see fit. With AR, you can set the cover and globe to ...