Why do we need these wind turbines?

Part two of conversation with Radoslaw Gawlik, ecologist, politician, co-founder of the Green party in Poland, president of the Ecological Association EKO-UNIA. Also joined us in the studio Mira Stanislawska - Meysztowicz, founder of the "Nasza Ziemia" Foundation in Poland.

Wind turbines. Source: AAP