Start-up firms have pilot plants for making steel with low carbon emissions, but can they scale up?

Google’s AI overviews are diverting traffic away from online newspapers and other publications.

The popularity of ChatGPT has raised questions about the future of traditional Google searches.

With batteries still too heavy, start-up plane makers are exploring hybrid options for new aircraft.

Huge investment is going into data centres for AI, but why are they so expensive?

How did E. coli become such an essential tool for scientists and will anything replace it?

Tech Now meets the team behind WasteShark – can it help tackle marine plastic pollution?

Ione Wells explores if lithium mining can be done more sustainably.

An American waste management company is storing organic waste deep underground.

Yasmin Morgan-Griffiths has exclusive access to La Sagrada Familia in Barcelona.