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Paul Wignall is Professor of Palaeo-environments at the School of Earth & Environment, University of Leeds and is the author of The Worst of Times" How Life on Earth Survived 80 Million Years of Extinctions.

Every mass extinction in the past 300 million years has coincided with major volcanic eruptions and vast flows of basalt lava. However, the direct link is not clear. Periods of rapid global warming suggest that carbon dioxide may be a factor but could volcanoes provide enough of this greenhouse gas? Also, the link between volcanoes and mass extinctions seems less clear further back in the fossil record.

Prof Wignall will speak about mass extinctions, and whether volcanoes or other factors can explain them.

The meeting will be in-person at Seven Arts, 31A Harrogate Road, Leeds LS7 3PD. It will not be broadcast over Zoom.

Please can everyone who can afford it remember to bring some £££ along to fund the cost of the venue, etc.