Results for bush fires

Owing to the smoke from nearby wildfires, Canberra this month has had the world’s worst air-quality index, with readings 20 times above the official hazardous threshold. The city also recently experienced its hottest day on record (111°F/44°C). Meanwhile, Delhi had its coldest December day on record. Both are evidence of growing climate volatility, confirming the reality of global warming. By Ramesh Thakur.