The Environmental Impact Study (SIES-pdf - which was prepared largely by ERM a company that imo has questionable objectivity on matters of actual pollution)
Here is the Carbon Tracker study as reported by Kate Sheppard @ HuffPo| Updated: 03/04/2014 1:59 pm EST
The State Department's final environmental impact analysis for the proposed Keystone XL pipeline downplays the significance the pipeline would have for development of the Canadian tar sands, according to a new analysis from a United Kingdom-based group. The analysis also argues that the State Department underestimated the amount of greenhouse gas emissions that would come with that development.
The Carbon Tracker Initiative, a nonprofit that focuses on how carbon budgets interact with financial markets, released the new report on Monday, making its case for why Keystone XL is more important in the context of global emissions than the State Department's study indicates.
So from reading this latest report it does indeed sound as if, from the beginning, with so much riding on this pipeline and so many powerful interests behind its approval, that some very important aspects were not given the balanced consideration that was/is needed..
The Carbon Tracker's interpretation is worth considering, if only because the State Department's FEIS used the group's methodology from previous studies in its own evaluation of the pipeline's production implications, though the government arrived at different conclusions.
..or overlooked altogether
It would be the equivalent of building an additional 46 coal-fired power plants, or roughly the average amount of CO2 that the United States emits overall each year.
I've been away so this has probably been covered here @ Daily Kos, but just in case.
Also too you can send a comment directly to the State Dept. Here if you want to