Le Peuple des airs

Bacteria, viruses—and even fungi, algae, pollen, and insects—live, travel, and circulate through the sky's invisible sea. How do such a multitude of organisms ascend into the air, circulate, and survive? What impact do they exert on our health, biodiversity, and the climate? Biodiversity, health, and climate: only recently have scientists begun to unravel how this subtle aerial plankton shapes our lives and the broader ecosystem. Yet many of these microorganisms are now imperiled by human activity. Guided by experts and illuminated by 3D models, this scientific investigation dives into a still-hidden realm, revealing the richness and fragility of the air we breathe.