Bibliographic record
Abstract
Introduction The U.S. economy consumes large amounts of imported oil. In 2006, U.S. consumption was about 20 million barrels per day (mbd), with domestic production a little over 8mbd. This gap of 12mbd (which has been growing since the 1970s) is 60 percent of U.S. consumption, with rising levels of imports making up the difference. Increased demand from countries like China and India has been associated with world prices rising to unprecedented levels. This has led to increased investment and production from higher-cost sources such as Canada's With conventional production peaking or declining in many countries, the vast potential of extraction from sand becomes commercially viable. Political instability in the Persian Gulf and Nigeria makes security of the supply chain an increasingly significant concern for the U.S. Since is priced in U.S. dollars, Canadian exports of sand petroleum will not be affected by the strong Canadian dollar (which is approaching parity with the U.S. dollar for the first time in decades). In the short run, gasoline demand is not very responsive to price changes, so the underlying demand conditions should remain consistent. Only a severe U.S. and worldwide recession (an unlikely prospect) would cause a sharp drop in prices. Therefore, conditions remain favorable for the continued development of the Canadian This essay reviews the increased significance of extracted from the Athabasca sands, located primarily in Alberta. As production ramped up from this nonconventional source, the tar became the oil sands. This narrative will proceed as follows: first, a review of current levels of production and proven reserves; second, the importance of Canadian exports to the United States; third, the increased presence of Asian nations, especially China, in Canadian sand production; fourth, the possible impact of Canada-Asia business on Canada-U.S. relations; fifth, recognition of the environmental challenges associated with sand development; and sixth, some conclusions about the long-term impacts of these developments. Oil Sands A recent article in the New York Times stated that Iraq's proven reserves stand at about 115 billion barrels, the world's third largest after Saudi Arabia and (Sept. 10, 2006). While this statement may be correct when counting conventional sources of oil, Canadian reserves should be ranked second, bumping down Iran and Iraq, when the sands are included. Since 2003, the Canadian sands have generally been included in total proven Canadian reserves. Overnight, this increased Canada's proven reserves from 5 billion to 180 billion barrels (Chastko 2004, xiii). As noted above, this places Canada second in the world to Saudi Arabia. Oil sand estimates, conservatively based on recoverable reserves using current technology, represent only 11 percent of the estimated 1.6 trillion barrels of sand in Alberta. In terms of actual production--what was recovered rather than what was recoverable--Canada was the eighth largest producer in the world in 2004 (Energy Information Administration [EIA] 2005). As improved technology allows for increased recovery rates, it is only a matter of time before Canadian reserves become the largest in the world. Oil sand production is expected to rise from current levels of 1 million barrels a day (mbd) to over 3mbd by 2015. While most output will be shipped to the U.S., some will be sold to China and other Asian nations. Oil exports have become increasingly important to Canada. Canada continues to enjoy an overall balance of trade surplus, especially with the United States, but has a deficit with most Asian countries, including China. While Canadian exports to the U.S. finally reached year 2000 levels once more in 2004, after a reduction following the tragedy of 9/11, these aggregate numbers hide the fact that foreign sales were flat or down in most categories--e. …
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.002 | 0.003 |
| Science and technology studies | 0.013 | 0.005 |
| Scholarly communication | 0.007 | 0.002 |
| Open science | 0.001 | 0.002 |
| Research integrity | 0.002 | 0.002 |
| Insufficient payload (model declined to judge) | 0.042 | 0.005 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".