The fact is that the planet, mainly influenced by solar and volcanic activity will have periods of warmer and colder weather, in the Little ,or Lesser Climatic Optimum
around 1000 AD and the period around the birth of Christ the temperatures were much higher than now yet Co2 was lower.
Climate scenarios created from a climatic optimum
line weather data with the most current models
The severe storms of the 13th and 14th centuries coincided with a period of climate change, turning the warmer medieval climatic optimum
into what we call the Little Ice Age.
Dinoflagellates, cercozoa, eustigmatophytes, and haptophyte algae responded most dramatically to the gradual increase in salinity after the latest marine reconnection and during the warm and moist mid-Holocene climatic optimum
The Holocene marine layer's maximum extension represents the paleoshoreline during the Holocene climatic optimum
(4000BC), when the sea level was at its highest.
A favourable climate and a wealth of fauna and flora have attracted people since early times, creating a rich archaeological record, particularly for the period of the Holocene climatic optimum
(8000-4500 years ago).
He notes that the Climatic Optimum
(9000 to 4000 BC) was the period of the invention of agriculture, the building of cities, and the transition from the Stone Age to the Bronze Age.
Playing the climate movei back a little farther, the GISP 2 ice will offer a portrait of the climatic optimum
, a time about 7,000 years ago when civilization experienced its warmest period ever.
Previous studies have found that the Miocene climatic optimum
, a period that extends from about 15 to 17 million years ago, was associated with big changes in both temperature and the amount of continental ice on the planet.
The period the researchers studied, called the Early Eocene Climatic Optimum
(EECO), began about three million years later and included a long-term temperature increase coupled with a long-term rise in diversity.
with highest levels at the Climatic Optimum
He said that bouts of depopulation of the Highlands and Islands, which he described as being "on the fringes of climatic optimum
at best", could also be connected to extreme weather.