What are the advantages of creating a digital mirror of a city – or an entire island? We speak to a company making digital twins to create simulations of the real world. Then we hear from a real set of twins about their award-winning carbon capture project. And the company sending tiny satellites into space to help environmental researchers.

Presenter: Chris Vallance Producer: Imran Rahman-Jones Editor: Monica Soriano

(Image: A graphic of a person's hand holding a mini city on its fingertips. Credit: Getty Images.)

This week on Tech Life, we're looking at the problems caused by illegal gold mining in Ghana. We'll hear how drones, AI and GPS trackers are being used to tackle the trade.

Also this week, Meta goes to court as it battles ads for so-called Nudifying apps. Is "I don't know" the solution to AI chatbot hallucinations ? And the pay-as-you-cook stove that's winning awards and improving health in Africa.

We enjoy reading your messages about the one item of tech you simply can't do without. If you want to tell us about your must-have piece of tech, please get in touch by emailing techlife@bbc.co.uk or send us a Whatsapp message or voice memo on +44 330 1230 320.

Presenter: Chris Vallance Producer: Tom Quinn Editor: Monica Soriano

Image: A photo of two gold miners in Ghana. Credit: Christian Thompson/EPA-EFE/REX/Shutterstock

We hear from inside China on the remarkably fast electric vehicle transition going on there, as the country moves away from petrol and diesel-powered cars and lorries. BBC Transport Correspondent Nick Marsh reports on the latest EV technology that's making Chinese brands popular and affordable.

Also on Tech Life this week, who has the fastest computer in the world ? And what is it used for ? An expert tells us everything we need to know about supercomputers. And we find out about a new piece of tech that can provide electricity, transport and clean drinking water in disaster zones - using solar power.

We enjoy reading your messages about the one item of tech you simply can't do without. If you want to tell us about your must-have piece of tech, please get in touch by emailing techlife@bbc.co.uk or send us a Whatsapp message or voice memo on +44 330 1230 320.

Presenter: Zoe Kleinman Producer: Tom Quinn Editor: Monica Soriano

Image: A photo of an electric car charging in China. Credit: Master/Getty Images.

What happens when a company we trust with our most personal data gets into financial trouble ? We hear from a woman who trusted a US company with her genetic information.

Also on Tech Life this week, will there be enough electricity for the demands of artificial intelligence ? The International Energy Agency tells us about the challenges of powering the AI boom. And we find out how to grow an island in The Maldives. The tech involved could protect low-lying territories from erosion and rising sea levels.

We enjoy reading your messages about the one item of tech you simply can't do without. If you want to tell us about your must-have piece of tech, please get in touch by emailing techlife@bbc.co.uk or send us a Whatsapp message or voice memo on +44 330 1230 320.

Presenter: Chris Vallance Producer: Tom Quinn Editor: Monica Soriano

Image: A scientist holds a DNA sample with the results on a computer screen in a laboratory. Credit: Westend61/Getty Images