I love Wikipedia but I do wish they had a detail level between "high level summary" and "proxy data from Esplugafreda in northeastern Spain shows a rapid 8 °C (14 °F) temperature rise, in accordance with existing regional records of marine and terrestrial environments. In the Fushun Basin, temperatures rose from 15.6 to 19.7 °C (60.1 to 67.5 °F)."