Writers: Review of Keystone XL pipeline information shows it's not in the national interest

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Via CNN story highlights:

• Writers: Review of Keystone XL pipeline information shows it's not in the national interest

• They say tar sands oil spews 17% more greenhouse gas than crude oil refined in the U.S.
• Writers: Report acknowledges tar sands oil from Keystone could worsen climate change
• Oil companies will need even more pipelines to reach their goals, they say