Clearer Thinking with Spencer Greenberg
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How bad is the air quality in the US and around the world? What's the evidence that certain kinds of particles in the air lead to negative health outcomes? Are there differences in air quality among urban, suburban, and rural areas? And if so, then to what extent are negative health outcomes attributable to air quality rather than to (e.g.) poverty, education, or other confounding factors? What are "PM 2.5" particles? Can some particles be too small to matter? Are all particles of a certain size harmful, or only specific types of...