This Medieval period of warming, also known as the Medieval climate anomaly, was associated with an unusual temperature rise roughly between 750 and 1350 AD (the European Middle Ages).

Scientists don’t know exactly what caused the Medieval Warm Period, which lasted from about 800 to 1400, though they agree it was the result of natural fluctuations in Earth’s climate.

From about AD 800 to 1300 the Earth underwent a slight warming period dubbed “The Medieval Warm Period.” Most places experienced milder winters and longer summers but temperature differences ...

BUFFALO, N.Y. — A new study questions the popular notion that 10th-century Norse people were able to colonize Greenland because of a period of unusually warm weather. Based upon signs left by old ...

A medieval warming period, opens new tab from approximately 800 to 1400 AD saw some areas as warm, or warmer, than today, Diamond said, however, the phenomenon was not global, and globally, the ...

Earth warmer now than in 'medieval times' Earth has not cooled 4 degrees Celsius since "medieval times," Michael Mann, a climate scientist at the University of Pennsylvania, told USA TODAY. "It ...

Before our current, carbon-fueled global warming trend took off during the 20th century, the most consequential temperature bump in recorded history was the Medieval Warm Period. This week ...