Bibliographic record
Abstract
Citing volatility in fertilizer markets, Nutrien has decided to suspend work on a low-carbon ammonia project planned for its complex in Geismar, Louisiana. In the Canadian company’s Aug. 2 earnings statement , CEO Ken Seitz says the move is meant to “reduce our controllable costs.” The cost of building the plant has increased from initial estimates, the company says. Nutrien also points to uncertainty around the timing of demand for low-carbon ammonia, which is intended to be exported for use as a fuel, primarily in East Asia. When Nutrien announced it was studying the project in May 2022, it estimated the cost at $2 billion. It planned an ammonia plant with 1.2 million metric tons (t) of annual capacity. An autothermal reformer was to produce hydrogen raw material from natural gas, and the firm would recover the by-product carbon dioxide. Overall, Nutrien aimed to recover 90% of the CO 2
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.007 | 0.001 |
| Scholarly communication | 0.003 | 0.001 |
| Open science | 0.001 | 0.002 |
| Research integrity | 0.003 | 0.003 |
| Insufficient payload (model declined to judge) | 0.028 | 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".