COP29 summit warns 2024 almost certain to be hottest on record

The COP29 climate summit in Azerbaijan has opened with a warning from the United Nations that this year is almost certain to be the hottest on record.Also in the programme: is it time to rethink the war in Ukraine? And new information on the planet Uranus.(Picture: A night view shows the venue of the United Nations climate change conference, known as COP29, in Baku, Azerbaijan November 11, 2024. Credit: Reuters/Murad Sezer)