Paleoclimate.   Was the Medieval Warm Period global?
Broecker
W S
WS
Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY 10964, USA. broecker@ldeo.columbia.edu
D002980:Climate; D017752:Greenhouse Effect; D013696:Temperature; D013995:Time; D014197:Trees / Q000254:growth & development; D014887:Weather