Graihagh Jackson and guests tackle more of your intriguing questions: Why do we use big wind turbines instead of small ones? Can petrol and diesel vehicles be converted to EVs? And can floodwater be captured and stored?

In the debate are Justin Rowlatt, BBC climate editor; Akshat Rathi, senior climate reporter for Bloomberg News and host of Bloomberg's Zero podcast; and Caroline Steel, presenter of BBC Crowdscience,

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Presenter: Graihagh Jackson