TY - BOOK AU - Lichtblau, John H. TI - The air is already cleaner: progress in meeting clean air goals for oil in the US U1 - 333.7 PY - 1992/// CY - Viena PB - OPEC KW - Petróleo KW - Transporte KW - Contaminación del Aire KW - Congresos y Conferencias KW - Estados Unidos N1 - Impreso; 06481; The transportation sector consumption per car keeps falling. Vehicle pollution drops by every measure. Alternative fuels, are they needed? The greenhouse effect. Coal and CO2 emission ER -