Food for Thought Lecture Series: An ice age mystery: did CO2 from the oceans cause the great Canadian ice sheet to disappear?

Now well into its second decade, Macdonald's ever-popular Food for Thought Lecture Series is in to another series of fascinating and thought-provoking lectures with the theme "Global Carbon".

The fourth lecture in the series is on Tuesday, October 21 with a talk by Professor Eric Galbraith, Department of Earth and Planetary Sciences, McGill University, who will address the issue of carbon in the oceans.

The series continues every second Tuesday until the end of November and is open to all. Visit the Food for Thought website for more information.