When wildfires move fast, the people in their path are left with little choice but to flee. And wildfires are moving more aggressively than ever, forcing entire communities from their homes and leaving destruction in their wake. Three memorable wildfires have recently made headlines around the world for how fast they spread, how intensely they burned and the lives they claimed… Fires in Lytton B.C., Lahaina, Hawaii, and West Kelowna, B.C. …But by analyzing three factors — weather conditions, topography and fuel, or what’s known as a “fire behaviour triangle” — those who fight and study fires say they can better understand and predict the conditions that lead to these fast-moving and destructive blazes and help prepare for a future where more fire is certain. …Robert Gray, a fire ecologist, said B.C. needs to ramp up its prescribed burns. …“Our treatments need to be on the scale of the fires that we’re seeing.”