ClimateWire: The State Department's long-awaited environmental review of Keystone XL on Friday sparked cautious optimism on both sides of the contentious pipeline debate, underscoring the public pressure facing the Obama administration before midterm elections.
Supporters of the $5.4 billion TransCanada project cheered the document's ultimate conclusion that the pipeline is unlikely to "significantly impact the rate of extraction in the oil sands," and therefore unlikely to exacerbate global greenhouse gas...