A woman wears a mask as the Singapore Central Business District is covered with haze Thursday evening, June 20, 2013. Singapore urged people to remain indoors amid unprecedented levels of air ... more 
A woman wears a mask as the Singapore Central Business District is covered with haze Thursday evening, June 20, 2013. Singapore urged people to remain indoors amid unprecedented levels of air pollution Thursday as a smoky haze wrought by forest fires in neighboring Indonesia worsened dramatically. (AP Photo/Joseph Nair) less 
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Associated Press | Photo By Joseph Nair
Thu, Jun 20, 2013 12:18 PM EDT