Smoke explosions. Fire tornadoes. Burning couches. It all happens in the fire lab: a purpose-built facility where researchers can safely set 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 watch a large gorse bush go up in flames and learn how this helps us prepare for future wildfires. Sign up to the Our Changing World monthly newsletter for episode backstories, science analysis and more.In this episode:01:54–09:39 – Watching a gorse bush burn in the fire lab10:45–12:43 – Burning couches, smoke explosions and fire tornadoes12:44–19:08 – Mini burn experiments and how research is preparing for wildfires of the future19:08–23:32 – Kate's experience as a wildland firefighter in Canada…Go to this episode on rnz.co.nz for more details

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