It's not unusual for Europe to have high temperatures during summer, but the intensity and frequency of the heatwaves are chiming clearly with experts' warnings that it's a direct result of global warming. Worldwatch's Perlina Lau speaks to climate scientist Professor Levant Kurnaz from Boğaziçi University in Istanbul, Turkey. They discuss the spate of wildfires across Europe, the high temperatures, and the record-breaking melting of Greenland's ice sheet.