Here’s a nifty tool to inform the divestment debate: an interactive timeline that follows a four year pulse of CO2 through the atmosphere over the course of a century.

Four years: the course of a typical college education. Given the amount of time that CO2 persists in the atmosphere, shouldn’t today’s students — who will spend a comparably larger portion of their lives with that emitted CO2 — have a place at the table here? What’s the time horizon of accountability for today’s administrators who choose to divest — or not?

The CO2 Timeline lets you ask some interesting questions… even if many of them are rhetorical.