Every day we all breathe in thousands of litres of air, it is, of course essential for our continued existence. But did you know that the air that surrounds us is filled with a thriving colony of life itself? This is known as the aerobiome – a population of thousands of species of bacteria, fungi and even potentially lethal viruses such as SARS-CoV-2.

In this episode, we speak to science journalist and author Carl Zimmer about his latest book Air-Borne – The Hidden History of the Life We Breathe.

He runs us through the fascinating history of aerobiology, outlines the key role the field played in developing the germ theory of disease, and explains how even clouds are filled with life.

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