TransCanada Corp.s proposed Keystone XL pipeline will not
significantly exacerbate the United States greenhouse gas
(GHG) emissions, the Calgary, Alberta-based pipeline company
wrote in a letter to the State Department.
President Obama said
in a recent speech on climate change that Keystone XLs
approval would depend largely on its expected impact on GHG
emissions (amm.com, June 26) GHG emissions from
products carried by Keystone XL are expected to total 18.7
million tonnes, which would lead to a global temperature
increase of "less than one one-hundred thousandth of a degree,"
according to the letter.
pipeline itself will have few emissions as it is powered by
electric motors, TransCanada said.
Oil transported via the pipeline from the Alberta oil sands
to the Gulf Coast is not significantly different in terms of
life-cycle GHG emissions than other heavy crudes it would
displace, for example from Venezuala and Mexico, according to