The popularity of light sweet crude oil among refiners is growing at a solid clip. The ongoing push to combat climate change and ever stricter regulations over fuel emissions is forcing refiners to significantly reduce the sulfur content of gasoline and other fuels. High levels of airborne sulfur oxide, which is primarily emitted by the burning of fossil fuels, can adversely affect the human respiratory system, defoliate plants, and cause acid rain. Airborne sulfur particles also contribute to global warming and visible air pollution. Western Europe,…

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