Summary: If the planet's atmosphere hits a milestone of 400 ppm of green house gases and hardly anyone notices, does it still count? Uhhh.....yes says David Turnbull, Campaigns Director for International Oil Change. We'll hear why this parts-per-million threshold better be a pivot point or else. And a wake-up call in the form of a new documentary is our next focus. We'll speak with the film maker of "Unacceptable Levels" to learn whats at stake from exposure to everyday chemicals and what can be done about it. Ed Brown says it starts with awareness and the film, and this interview, tells us what we need to know
