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<p>The <a href="page.php?w=1973_oil_crisis">1973</a> and <a href="page.php?w=1979_oil_crisis">1979</a> oil price increases, and the development of improved extraction technology enabled profitable extraction and processing of the oil sands. Together with other so-called unconventional oil extraction practices, oil sands are implicated in the unburnable carbon debate but also contribute to <a href="page.php?w=energy_security">energy security</a> and counteract the international price cartel <a href="page.php?w=OPEC">OPEC</a>. According to the Oil</p><p>
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