Dr. Paul Hoffman, Professor of Geology at both Harvard University and the University of Victoria, will give three talks at UC Santa Barbara in late September and early October as this year's Crowell Distinguished Lecturer.

Snowball Earth: apocalyptic climate change at an evolutionary divide

Lecture 1.  The discovery of Snowball Earth: “science or snow job?”  (Tuesday, September 29 - 4:00 to 5:00 pm) MSB 1302 

Lecture 2.  The dynamics of Snowball Earth: reinventing the hypopthesis (Wednesday, September 30 - 4:00 to 5:00 pm) MSB 1302

Lecture 3.  The legitimation of Snowball Earth: passing critical tests (Thursday, October 1 - 2:00 - 3:00 pm) Webb 1100