That is still the case today, which implies that South Aegean mean summer temperatures in the 4th and the 5th centuries BC were within a degree of modern ones.

[2] Dendrochronological evidence from wood found at the Parthenon shows variability of climate in the 5th century BC, which resembles the modern pattern of variation.

[3] Cooling at the end of the period is noted in Southwest Florida, which may have been caused by a reduction in solar radiation reaching the Earth.

[7] A high-resolution pollen analysis of a core from Galicia concluded in 2003 that the Roman Warm Period lasted from 250 BC to AD 450 in northwestern Iberia.

[9] Artifacts recovered from the retreating Schnidejoch glacier have been taken as evidence for the Bronze Age, Roman, and Medieval Warm Periods.