A large system of ocean currents known as the Atlantic meridional overturning circulation (AMOC) has been making headlines this week as a new paper predicts its imminent collapse. This could have devastating consequences for the climate. But not all climate scientist and oceanographers are convinced by the results. Stefan Rahmstorf and Eleanor Frajka-Williams debate the contentious paper.In more positive news, huge steps have been made in the field of gene therapy. Stefano Rivella and Hamideh Parhiz tell us about their incredible mRNA delivery technology which could take much of the cost and risk out of treating debilitating disordersAnd as wildfires continue to blaze around the world, reporter Melanie Brown discovers how experts study the physics of these blazes from the Missoula Fire Sciences Laboratory. Presenter: Roland Pease
Producer: Ella Hubber
Editor: Richard Collings

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