by Jonathan Davies (Department of Biology, McGill)
Evidence suggests that human activities are altering the world climate and that, on average, global temperatures are rising by approximately 0.13°C per decade. Whilst there continues to be debate about the underlying causes, plants and animal have been responding dramatically to these changes. With shifting climate, species are faced with three stark options: migrate, adapt or perish. In plants, where dispersal is limited, species have been flowering earlier, fruiting later and, unfortunately, going extinct. These responses provide a biotic index by which to quantify climate change, and a pertinent reminder of the consequence of climate change on the world around us.
This presentation about climate change will be followed by a screening of the PBS documentary film "Global Warming: The Signs and the Science", narrated by singer Alanis Morissette.