Sir David wishes Attenborough polar ship 'bon voyage'

Sir David Attenborough has given a send-off to the new polar research vessel that's carries his name. The RRS Sir David Attenborough is visiting Greenwich in London ahead of its maiden ocean expedition to the Antarctic. She's in the capital also to mark the start of the COP26 climate conference which starts at the weekend.

Read more: Attenborough polar ship makes her London debut