Temperature data for the sea just south of Greenland dates back to 1870.
Notes on verification
Confirmed by peer-reviewed Nature paper (Caesar et al. 2018), Science News, RealClimate, and additional academic sources referencing SST records dating to 1870 for this region, used in AMOC/cold blob research. [tier=gold indep_score=0.925 clusters=4 claim_tier=notable]
Sources
- Is the Atlantic Ocean's great conveyer belt really slowing ... (seed:science_and_space)
- https://www.sciencenews.org/article/cold-blob-may-signal-current-decline (corroboration)
- https://www.nature.com/articles/s41586-018-0006-5 (corroboration)
- https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2025GL118383 (corroboration)
- https://www.realclimate.org/index.php/archives/2024/02/new-study-suggests-the-atlantic-overturning-circulation-amoc-is-on-tipping-course/ (corroboration)