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Climate Claim Checker

Dev claim · claim-1490 · #31 of 154

“the concentration of carbon dioxide in Earth’s atmosphere has climbed to a level last seen more than 3 million years ago — before humans even appeared on the rocky ball we call home.”

Claim tags (sorted stems; highlighted when a passage shares them)

  • ago
  • appear
  • atmospher
  • ball
  • call
  • carbon
  • climb
  • concentr
  • dioxid
  • earth
  • even
  • home
  • human
  • last
  • level
  • million
  • rocki
  • seen
  • year

Annotators’ label

Supports Run this claim live

The model’s verdict

The Transformer retrained from the notebook (the 2024 weights were never saved), shown three ways. The first is how the notebook evaluated it.

Notebook protocol

Dev claims predicted in batches of 16, in file order, from the 2024 retrieved evidence, as the notebook does.

Supports✓ matches the label
Supports
42.7%
Refutes
14.0%
Not enough info
31.8%
Disputed
11.4%

One claim at a time

The same model run on a single claim, which is how the Try-it page runs it.

Supports✓ matches the label
Supports
44.4%
Refutes
16.0%
Not enough info
28.7%
Disputed
10.9%

With gold evidence

Fed the human-annotated evidence instead of retrieved passages. This is the 'val accuracy' the training loop reports.

Supports✓ matches the label
Supports
61.8%
Refutes
25.1%
Not enough info
2.1%
Disputed
11.0%

Retrieved vs gold evidence

Gold passages were picked by the dataset’s annotators. Retrieved passages are what the TF-IDF rule returned from all 1.19M passages. Switch between the submitted 2024 output and the re-runs.

2024 submission

The passages the team actually retrieved and submitted in 2024 (their saved output file). The file records only passage ids, so scores are recomputed with the submission rule.

Path
not recorded
Found
0 of 1 gold
P
0.00
R
0.00
F
0.00
  1. #1evidence-1164150

    It lasted from 235 to 228.4 million years ago (Ma).

    • ago (shared with the claim)
    • million (shared with the claim)
    • year (shared with the claim)
    • last (shared with the claim)
    cos
    0.467
    overlap
    1.000
    score
    1.467
    shared
    4
  2. #2evidence-539255

    The Tremadocian lasted from to million years ago.

    • year (shared with the claim)
    • million (shared with the claim)
    • last (shared with the claim)
    • ago (shared with the claim)
    cos
    0.467
    overlap
    1.000
    score
    1.467
    shared
    4
  3. #3evidence-321984

    Its last appearance on the hustings was 1963.

    • appear (shared with the claim)
    • last (shared with the claim)
    cos
    0.387
    overlap
    1.000
    score
    1.387
    shared
    2
  4. #4evidence-1196424

    Carbon dioxide is colorless.

    • dioxid (shared with the claim)
    • carbon (shared with the claim)
    cos
    0.320
    overlap
    1.000
    score
    1.320
    shared
    2
  5. #5evidence-862879

    He had jilted even Merlin.

    • even (shared with the claim)
    cos
    0.306
    overlap
    1.000
    score
    1.306
    shared
    1
  6. #6evidence-597214

    It was certified triple platinum by the Recording Industry Association of America (RIAA) for three million units shipped in the United States and has sold over 15 million copies worldwide, becoming one of the best-selling albums during the 2000s century.

    • million (shared with the claim)
    cos
    0.292
    overlap
    1.000
    score
    1.292
    shared
    1

Gold evidence (1)

  1. evidence-551522

    The National Geographic wrote that the concentration of carbon dioxide in the atmosphere is this high "for the first time in 55 years of measurement—and probably more than 3 million years of Earth history."

    • concentr (shared with the claim)
    • dioxid (shared with the claim)
    • probabl
    • geograph
    • year (shared with the claim)