Thermal Maximum may refer to: Cretaceous Thermal Maximum Paleocene–Eocene Thermal Maximum Eocene Thermal Maximum 2 Early Eocene Climatic Optimum, also known as the Early Eocene Thermal Maximum Middle Eocene Climatic Optimum, also known as the Middle Eocene Thermal Maximum Middle Miocene Climatic Optimum, also known as the Middle Miocene Thermal Maximum Holocene climatic optimum, also known as the Holocene Thermal Maximum See also Thermal optimum