By eavesdropping on the chemical chatter within lung cells exposed to particulate pollution, researchers have identified intracellular messages that may trigger disease. Legal' air pollution may also kill. Raloff, J. 1998. How inhaled dust harms the lungs .
Climate protection saves lives now .
Clinton accepts new clean air proposals. Heart-y risks from breathing fine dust. Szabo, E. . . . M.J. Birrer, et al . 1996. An early even in human lung carcinogenesis.