hello, i m christian fraser. you re watching the context on bbc news. a court of appeals decides donald trump wil not be given presidential immunity for his role in the january 6th capitol riots, and must face a civil lawsuit. welcome back. at the cop climate summit in dubai today, the brazilian president, lula da silva, addressed the elephant in the room. we have a collective problem, he said, a lack of ambition, our current targets, he added, don t go anywhere near far enough. the evidence suggests he is right. today, the world meteorological organisation told us, with a month to go in 2023, the average global temperature is on track to be 1.4 degrees celsius above pre industrial levels. that is 2.5 fahrenheit. you might recall that the agreement in 2015, in paris, was to limit global warming to well below 2 degrees celsius and to pursue efforts to keep warming within the much safer limit of 1.5. few believe that that can now be achieved. and so, a lot of the fo