global average temperatures over land have plummeted by more than 1c since the middle of this year – their biggest and steepest fall on record.
global average temperatures over land have plummeted by more than 1c since the middle of this year – their biggest and steepest fall on record.
paleocene:10
in the paleocene, with a global average temperature of about 24–25 °c (75–77 °f), compared to 14 °c (57 °f) in more recent times, the earth had a greenhouse climate without permanent ice sheets at the poles, like the preceding mesozoic.