President Biden sets out his climate change agenda

President Biden has signed executive orders to tackle climate change. The new climate envoy John Kerry speaks to the BBC and we also get a reaction from a representative of oil and gas interests in the US and from an environmental group.

A WHO team is starting its investigation of the origin of the Covid-19 virus in Wuhan, after their two weeks in quarantine - we go live to Wuhan.

And two young Kenyans describe their design for a robotic arm powered by brain signals and designed for people with disabilities.