A little heads-up for folks in Australia. Tonight's episode of Catalyst on the ABC is "Dirty Little Secrets":
Is the air in our cities safe to breathe? New science about fine particle pollution has a dire warning for public health. A storm of toxic dust and poison gases swirls through our streets and suburbs every day. Not the result of some freak industrial accident, but an invisible killer we unwittingly spread from our vehicle exhausts. The global epidemic of fine particle pollution is estimated to kill nearly a million people each year. The toxic particles are so incredibly small they can slip straight through lung walls into our bloodstream. So small, are they beyond the reach of government agencies charged with protecting public health?
Compulsory viewing, I think.