On the edge of a new volcano

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For the third year running, Iceland’s Reykjanes peninsula is experiencing another spectacular volcanic eruption. Volcanologist Evgenia Ilyinskaya has been out in Iceland witnessing the sight and getting samples of the noxious fumes. Across the rest of the Northern Hemisphere heat domes persist, bringing extreme weather ranging from wildfires to tornadoes. We keep on seeing that this year “is the warmest in 120,000 years”. But what does that mean? Two paleoclimatologists, Bette Otto-Bliesner and Jessica Tierney tell us more. And we’re going deep. Deep into the brain that is, with a newly-developed probe which is finer than a baby’s hair. Dr Anqi Zhang of Stanford University explains her delicate technology. Finally, new research suggests that SARS-CoV-2 could have arisen in the wild no more than four years ago, a mishmash of other viral genomes. Bioinformatician Jonathan Pekar discusses his new paper. Presenter: Roland Pease Producer: Ella Hubber Editor: Richard Collings (Photo: Dr. Evgenia Ilyinskaya Credit: @EIlyinskaya)