The amount of time between aircraft as they land at Toronto Pearson International Airport might seem prosaic to the untrained eye, but there’s a lot more going on than a pilot negotiating the gentle return to Earth of hundreds of tons of metal. Every millisecond that passes is tied to a new technology touted as a partial solution to two intractable problems (albeit of wildly divergent importance).

We’re of course talking about airport delays and global warming.

A technology called Intelligent Approach (IA) is constantly working to tighten the space between incoming aircraft as they approach Pearson. It’s one of a number of new systems aimed at chipping away at the carbon footprint of an inherently dirty industry: commercial aviation.