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Increased tremors have been felt in Iceland, and concerns about an impending eruption have led to the evacuation of the town of Grindavik. Geophysicist Dr Freysteinn Sigmundsson reveals more about the events and whether this area of Iceland may be entering a new period of volcanic activity that could span centuries.

Also, Google DeepMind鈥檚 new GraphCast system could revolutionise weather forecasting. R茅mi Lam from Google DeepMind and Dr Matthew Chantry from the European Centre for Medium-Range Weather Forecasts explain how it works.

Beyond warming our planet, climate change can have wide-ranging, unexpected impacts on people and the environment. Dr Christopher Trisos from the University of Cape Town has the lowdown.

Finally, recreating ancient seawater in the laboratory has given Dr Rosalie Tostevin, a geochemist from the University of Cape Town, additional information about the metals used by early microbes.

Presenter: Roland Pease
Producer: Alice Lipscombe-Southwell
Editor: Martin Smith
Production Co-ordinator: Jana Bennett-Holesworth

(Image: Emergency services worker walking near a crack cutting across the main road in Grindavik, southwestern Iceland following earthquakes. Credit: KJARTAN TORBJOERNSSON/AFP via Getty Images)