<p>Awed by oil sands, Mulcair calls for more environmental oversight</p>
<p>JOSH WINGROVE</p>
<p>EDMONTON — The Globe and Mail</p>
<p>Published Thursday, May. 31 2012</p>
<p>Precisely one thing surprised Thomas Mulcair on his visit to Alberta: the scale of the oil sands.</p>
<p>During his first visit, including a helicopter flight over several oil sands mines, to a region he has criticized, Mr. Mulcair was overwhelmed by the “awe-inspiring” display.</p>
<p>He stopped short, however, of calling the mines dirty.</p>
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