The human environmental footprint is not only deep, but old. Ancient traces of this footprint can be found in animal bones , shells , scales, and antlers at archaeological sites. Together, these...
By Keith Kintigh / The Conversation Archaeology – the name conjures up images of someone carefully sifting the sands for traces of the past and then meticulously putting those relics in a museum. But...
Why do ice ages occur? Surprisingly, even after many decades of paleoclimatic research we simply do not know for sure. Most scientists will agree that ice age cycles have something to do with...
