The earth’s climatic history including natural causes of past climate change and human influences on climate will be explored. Three lectures; one term Prerequisite(s): One of BIOLOGY 1M03, EARTH SC 1G03, ENVIR SC 1A03, 1B03, 1G03, ISCI 1A24; and registration in Level III or above. One of EARTH SC 2C03, 2E03, ENVIR SC 2C03, 2E03, GEO 2C03, 2E03, ISCI 2A18, LIFE SCI 2H03 is strongly recommended.