Military leaders have known for millennia that the time to prepare for a challenge is before it hits you, says scientist and retired US Navy officer David Titley. He takes us from the humanitarian catastrophe in Syria to the icy shores of Svalbard to show how the military approaches the threat of climate change, in a refreshingly practical, nonpartisan take on climate preparedness. "The ice doesn't care who's in the White House. It doesn't care which party controls your congress. It doesn't care which party controls your parliament," Titley says. "It just melts."

David Titley: How the military fights climate change

How the military fights climate change

Syria's crisis, partly fueled by climate-induced drought, exemplifies how environmental shifts catalyze geopolitical unrest.

Syria's crisis, partly spurred by climate-induced drought, showcases how environmental shifts fuel geopolitical instability.

Svalbard's strategic importance rises as melting ice opens new naval routes, highlighting climate change's impact on global security.