What's fueling Europe's unprecedented wildfires?

Deadly wildfires have swept across large swathes of Europe in recent weeks, forcing hundreds of thousands of people to flee their homes and leaving vast areas of land scorched. What's behind Europe's increasingly destructive wildfire seasons? Are these fires becoming the new normal in a warming climate? Climate Watch host Zhao Ying speaks with Víctor Resco de Dios, Professor of Forest Science and Global Change at the University of Lleida in Spain.