New studies cast dark cloud over air pollution
http://www.thelancet.com/journals/lancet/article/PIIS0140-6736%2812%2960292-X/fulltext?version=printerFriendly
http://www.thelancet.com/journals/lancet/article/PIIS0140-6736%2812%2960292-X/fulltext?version=printerFriendly
"Evidence of the damaging health effects of air pollution is building after the publication of new studies linking pollutants to stroke, cognitive decline, and heart attack. Sharmila Devi reports."