Air pollution has become the world's greatest environmental health risk, and science is only beginning to reveal its wide-ranging effects. Globally, 19,000 people die each day from air pollution, killing more than HIV/AIDS, tuberculosis, malaria and car accidents combined. What happened to the air we breathe? Sustainability journalist Tim Smedley has travelled the world to try and find the answer, visiting cities at the forefront of the fight against...

"Layla Harrison wants to leave her beach-bum days for digs behind a reporter's desk. Aster Amirpour wants to scream at the next casting director who tells her "we need ethnic but not your kind of ethnic." Tommy Phillips dreams of buying a twelve-string guitar and using it to shred his way back into his famous absentee dad's life. But Madison Brooks took destiny and made it her bitch a long time ago. She's Hollywood's hottest starlet, and the things...