{"id":"W2135496572","doi":"10.1038/ngeo1797","title":"Continental-scale temperature variability during the past two millennia","year":2013,"lang":"en","type":"article","venue":"Nature Geoscience","topic":"Tree-ring climate responses","field":"Earth and Planetary Sciences","cited_by":1232,"is_retracted":false,"has_abstract":false,"ca_institutions":"University of Ottawa","funders":"University of Bern","keywords":"Climatology; Period (music); Northern Hemisphere; Climate change; Little ice age; Southern Hemisphere; Global cooling; Geology; Centennial; Paleoclimatology; Arctic; Physical geography; Geography; Oceanography; Archaeology","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.003809240546479946,"score_gpt":0.2082606914532294,"score_spread":0.2044514509067494,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}