During the first half of the 1st millennium BC, the presently arid southern regions of Italy received more precipitation than they do now.
Notes on verification
Supported by multiple independent peer-reviewed paleoclimate studies (speleothem records, NAO-based climate modeling, proxy reviews), though exact magnitude and precise timeframe vary across sources and the original Wikipedia citation could not be directly verified. [tier=gold indep_score=0.95 clusters=3 claim_tier=notable]
Sources
- Climate of ancient Rome (wikipedia)
- https://direct.mit.edu/jinh/article/54/1/1/116401/An-Environmental-and-Climate-History-of-the-Roman (corroboration)
- https://www.researchgate.net/publication/342904215_Author_Correction_Speleothem_record_attests_to_stable_environmental_conditions_during_Neanderthal-modern_human_turnover_in_southern_Italy (corroboration)
- https://www.sciencedirect.com/science/article/abs/pii/S0277379115301189 (corroboration)