
Bacteria, viruses, but also fungi, algae, pollen, and even insects: micro-organisms thrive and circulate constantly in our sky. How can so many living beings find their way into the air and circulate? How do they survive? And what influence do they have on our lives and the living world? Biodiversity, health, climate: it is only recently that scientists have begun to understand how this discreet aerial "plankton" affects our lives and our ecosystem. But despite their many virtues, some of these micro-organisms are now threatened by human activities. With the help of experts and 3D models, this scientific investigation plunges us into the heart of a still mysterious world, and reveals the diversity and fragility of the air we breathe.

Stigma
Stigma
Ester Hernandez
Ester Hernandez
Michael Morgan: San Francisco Foundation Community Leadership Awards 2006
Michael Morgan: San Francisco Foundation Community Leadership Awards 2006
Dr. Joseph Marshall, Jr.: San Francisco Foundation Community Leadership Awards 2006
Dr. Joseph Marshall, Jr.: San Francisco Foundation Community Leadership Awards 2006
Eva Paterson: San Francisco Foundation Community Leadership Awards 2007
Eva Paterson: San Francisco Foundation Community Leadership Awards 2007

The First Woman
The First Woman
National Center for Lesbian Rights
National Center for Lesbian Rights
Dr. Barbara Staggers
Dr. Barbara Staggers
Puente de la Costa Sur
Puente de la Costa Sur
Dr Washington Burns: San Francisco Foundation Community Leadership Awards 2010
Dr Washington Burns: San Francisco Foundation Community Leadership Awards 2010
Insight Prison Project
Insight Prison Project
Bishop William Swing: San Francisco Foundation Community Leadership Awards 2006
Bishop William Swing: San Francisco Foundation Community Leadership Awards 2006