By the Pleistocene the local climate had cooled significantly.
The climate is warm in the coastal regions and cools toward the 4,500m (14,763 ft) mountains.
By contrast, the years from 1945 to 1970, when the climate cooled, coincided with a period of longer cycles.
The Earth's climate cooled, and ice ages started about 2.5 Ma.
The climate isn't cooling - this decade is about 0.2C degrees warmer than the previous one.
Then the climate cooled again and the Valders substage began.
For the remainder of the Cenozoic, the state's climate cooled.
During the later part of the Cenozoic era, the local climate cooled.
In the 1970s, a series of scientific conferences concluded that the world's climate is cooling.
They likely died out several million years ago, possibly when the climate cooled.