In this episode:00:49 What to expect at COP28.The UN’s annual climate change conference is starting soon in Dubai. This time will be the first time that humanity formally assesses its progress under the 2015 Paris climate agreement, so we ask if this challenge of keeping warming below 1.5 ˚C can be met and what needs to happen at COP28 to make it a reality. News Feature: Is it too late to keep global warming below 1.5 °C? The challenge in 7 charts10:49 Research HighlightsFalcons show off their smarts, and how smoke from California wildfires made Europe cloudy.Research Highlight: These falcons excel at problem-solving — and outdo some of the world’s smartest birdsResearch Highlight: Huge California wildfires seeded cirrus clouds half a world away12:59 Briefing ChatThe mystery surrounding a powerful cosmic ray, and how to make super hot plasma easily.Nature News: The most powerful cosmic ray since the Oh-My-God particle puzzles scientistsResearch Article: Xie et al.Video: Super hot plasma made easy with stabilising fibresSubscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday. Hosted on Acast. See acast.com/privacy for more information.