FiveThirtyEight: During Keystone XLs seven-year review process, the pipelines political significance ballooned far beyond its measurable consequences. In partisan narratives, it was often framed as a fight pitting jobs against the climate and energy security against environmental concerns. In reality, the pipeline stood to make little difference in any of these arenas.
On Friday, President Obama announced that he was rejecting TransCanadas request to build the 1,179-mile Keystone XL pipeline. It would have...