Welcome Visitor:

Ice Is Nice

Successive glacial periods have left indelible marks on the land as well as human development.

You may be surprised to learn that Earth has been in an ice age for nearly 3 million years and that the latest glacial period was just one of dozens. This talk explores how ice ages and glacial periods work, the scars they have left on the landscape, and how they have affected the development of civilization.

Ice Age Earth

The Earth from space showing ice age ice sheets

The Earth from space showing the Northern hemisphere ice sheets during the latest glacial period.