【烟笼堪培拉】12月8日清晨，林火造成的浓烟笼罩澳大利亚堪培拉，远处的国会大厦若隐若现。 澳大利亚新南威尔士州的林火已持续数日，7日傍晚到8日，大量烟尘笼罩澳大利亚首都堪培拉及附近地区。Photos taken on Dec. 8, 2019 show thick smoke shrouding Canberra, capital of Australia. Thick smoke from bushfires in New South Wales descended on Canberra Saturday evening, and still blankets the city on Sunday. (Photo by Chu Chen/Xinhua) https://t.cn/AiepIou9

Smoke from bushfires blanket Sydney on November 19, 2019. Sydney woke up to a thick blanket of smoke as New South Wales warns residents of the dangers amid severe fire dangers and hot, windy weather. Bushfire-prone Australia has experienced a horrific start to its fire season, which scientists say is beginning earlier and becoming more extreme as a result of climate change, which is raising temperatures and sapping moisture from the environment.
PETER PARKS / AFP

【重霾下的新德里：空气污染“爆表”数周仍未好转】India's capital New Delhi has been enveloped in heavy, toxic smog for weeks. Every winter, the megacity of 20 million people is blanketed by a poisonous smog of car fumes, industrial emissions and smoke from stubble burning at farms in neighboring states. But this time the levels are the worst in recent years. Concentrations of fine particles (2.5 microns or less in diameter) in the air hit the highest level of this season, according to India's state-run System of Air Quality Weather Forecasting and Research (SAFAR). It has approached 1,000 micrograms per cubic meter of air, while the recommended World Health Organization safe daily maximum is a reading of 25. The SAFAR rates the air "very poor."