What is not mentioned anywhere in the article or the change in policy is the critical component of CLEAN UP of the current tar sands extraction miasma. The extracting companies and all other companies involved in the operations must be taken to task for all the environmental and ecological devastation they brought across the land. The holding ponds full of who knows how many poisons, heavy metals, and other toxins threaten rivers, lakes, streams, and soils within several miles of their sites. The clean up of those "ponds" is exigent...time is of the essence!
To view the devastation, you can view a documentary by Garth Lentz shown on TED: http://www.ted.com/talks/garth_lenz_images_of_beauty_and_devastation
You will need tissues while viewing this. Think of all the First Nations people whose lives depend on the rivers/lakes/creeks, fish, wildlife, etc. that have all been deeply and adversely affected by the tar sands extraction: cancers and other debilitating health conditions have risen precipitously among these people as a result. Harper himself should be held financially liable for his role in this travesty.