Our Changing World – Wildfire science heats up

Smoke explosions. Fire tornadoes. Burning couches. It all happens in the fire lab: a purpose-built facility where researchers can set safely stuff on fire and study how it burns, for science. New Zealand experiences 4,500 wildfires every year, with the risk ramping up due to climate change. We visit the fire lab to learnt how research can help us prepare for future wildfires, and watch a large gorse bush go up in flames.