Just to get a conversation going, I wanted to mention Andrea Polli's project Particle Falls, a digital media installation currently on display in downtown Philadelphia, PA. The project seeks to raise awareness about how invisible particles in the air may affect human health. I'm curious as to others' thoughts on this project. What kind of public knowledge might it generate, and what can individual viewers do with this knowledge? Is there a way to make digital media projects such as this, which seeks to raise environmental awareness, more intelligible to the public and/or more likely to generate positive, behavioral change? I raise these issues because activists (be it for the environment or other causes) encounter many barriers to engendering change. I'm interested in what roles digital technology and public digital media projects may play in mediating positive reforms and lowering barriers to social revolution.