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.

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).

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 glaciers, ...

The medieval warm period and onset of the little ice age were not visible in the isotopes of the Lancaster Sound food web but modern warming is very apparent. We can, therefore, ...

Reconstructions of past temperatures often portray the extended warm period known as the Medieval Climate Anomaly (ad 950–1250) as warmer than the current period.However, a set of wood-anatomy ...

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 ...