The United Nations Office for Disaster Risk Reduction (UNISDR) has warned that wildfires could become more frequent and more destructive as global temperatures rise and drought conditions plague many regions of the world.“Last year was the hottest year on record and was above average for the number of reported major droughts and heatwaves. This year we are seeing a similar pattern with new temperature records being set on a monthly basis,” UNISDR chief Robert Glasser said yesterday in a news release issued by the Office.