The (Not So) Boring Billion with Prof. Dietmar Müller (478)

The "boring billion" is a misnomer. That stretch of Earth’s history, from 1.8 to 0.8 billion years ago, was long dismissed as a dull interlude—no major ice ages, no dramatic climate swings, no big evolutionary leaps. But according to geophysicist Dietmar Müller, it was during this period that the stage was set for complex life. His research, published in a paper co-authored with colleagues, argues that the breakup of a supercontinent called Nuna (also known as Columbia) around 1.4 billion years ago created vast new passive margins—the shallow, nutrient-rich continental shelves that act as nurseries for marine life. This tectonic reconfiguration, combined with a reduction in volcanic outgassing, helped oxygenate the oceans and atmosphere, enabling the emergence of eukaryotic cells (cells with a nucleus) long before the Cambrian explosion.

The Slow Carbon Cycle and Plate Tectonics