FACT SHEET: Keystone XL Pipeline Act (S.1) - Senate

CO2 per ton than an equivalent amount of the lowest quality mined coals. Tar sands refining produced 50% more pet coke than conventional crude. [Scientific American, 1/23/13] Pet coke dust is particulate matter. Particulate matter is among the most harmful of all air pollutants. When inhaled these particles evade the respiratory system's natural

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