Thick haze hung over northern India and Bangladesh in January 2013. Over the past decade, large cities in India have seen some of the world's fastest-rising levels of air pollution.
Record-breaking temperatures have fueled fires across Australia. In New South Wales, firefighters fought numerous fires across the densely-populated state on January 9, 2013.
Usually the lake within Pingualuit Crater freezes by mid-September. In 2012, its circular blue surface still appeared to be free of ice in late-November.