The world we live in today is an icehouse world. It is characterized by bipolar glaciation.
We think of this as normal, but it's not. For most of the past 55 million years our planet was a greenhouse world.
Bipolar glaciation is geologically rare, possibly unique. No other previous instance of bipolar glaciation has been recorded in the geologic record.
The icehouse world we live in today is characterized by glacial - interglacial cycles and a high latitudinal thermal gradient.
The modern icehouse world we live in today differed strongly from the greenhouse world in that the greenhouse world did not have bipolar glaciation and had a low latitude thermal gradient.
We think of this as normal, but it's not. For most of the past 55 million years our planet was a greenhouse world.
Bipolar glaciation is geologically rare, possibly unique. No other previous instance of bipolar glaciation has been recorded in the geologic record.
The icehouse world we live in today is characterized by glacial - interglacial cycles and a high latitudinal thermal gradient.
The modern icehouse world we live in today differed strongly from the greenhouse world in that the greenhouse world did not have bipolar glaciation and had a low latitude thermal gradient.