Your questions answered: Geo-engineering; keeping houses cool; the climate powers of sharks

Presenter Graihagh Jackson and her regular panel take Climate Questions from listeners. BBC Climate Editor Justin Rowlatt, Prof Tamsin Edwards of King's College London, and Dr Akshat Rathi, senior climate reporter for Bloomberg News, discuss ideas for geo-engineering the atmosphere, the links between climate change and shipping, and which animals do the best job of helping us store carbon.

Plus, Graihagh visits a Climate Question listener to investigate his idea of using yoghurt to keep our homes cool in heatwaves!

If you've got a head-scratcher, email us at theclimatequestion@bbc.com or leave a Whatsapp message on +44 8000 321 721

Producer: Osman Iqbal Sound Engineers: Andy Fell and Tom Brignell Editor: Simon Watts