Britain's Prime Minister Boris Johnson waits to greet leaders as they arrive to attend the COP26 UN Climate Change Conference in Glasgow, Scotland on November 1, 2021.  - COP26, running from October 31 to November 12 in Glasgow will be the biggest climate conference since the 2015 Paris summit and is seen as crucial in setting worldwide emission targets to slow global warming, as well as firming up other key commitments.  (Photo by Christopher Furlong  /  POOL  /  AFP)

The UK's week in pictures: Cop26, the northern lights, and Diwali