Allied World’s Sales Dip, Stock Drops

Allied World Assurance Co., the seller of aviation and environmental insurance, fell the most since February as second-quarter profit missed analysts' estimates amid a decline in sales. Allied ...

Air Pollution Killed 7 Million in 2012: WHO

Air pollution killed about 7 million people in 2012, making it the world's single biggest environmental health risk, the World Health Organization (WHO) said on Tuesday. The toll, a doubling of ...