Satya Nadella chief executive of Microsoft has called for change at OpenAI after it fired co-founder Sam Altman on Friday. Mr Altman was appointed to a senior role at Microsoft on Monday as hundreds of his former employees called for him to be reinstated. Microsoft is OpenAI's biggest investor.

Also on the programme the latest with Elon Musk’s lawsuit against Media Matters and the impact of climate change on low-lying islands and atolls in the Pacific such as Tuvalu.