Thanda Thanda Paani: Why cold water might have been key to life on earth

Snowball Earth refers to several global glaciation events that took place around 700 million years ago. During these times, the planet was encased in ice, creating harsh conditions for life. Despite this, it was also a period of significant biological change, leading to the emergence of multicellular organisms. Carl Simpson, a paleobiologist from the University of Colorado, Boulder, suggests that the icy conditions of Snowball Earth made seawater much thicker and more challenging for tiny, single-celled organisms to navigate and find food.

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