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The world, the universe and us

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The world, the universe and us
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  • Scientists discovered a 100,000-year-old organism; Breakthrough brain implant uses AI to treat pain; How climate change leads to revolutions
    Episode 318 An ancient organism has been discovered that has been alive for at least 100,000 years. Found in the Siberian permafrost, this lifeform doesn’t appear to have just remained dormant - but instead has actually been growing extremely slowly. Our understanding of life is already quite fuzzy, and this finding adds to the idea that life itself is a fuzzy state of being.  A breakthrough method of treating previously untreatable chronic pain is showing promise. An intuitive form of deep brain stimulation, guided by machine learning, has provided targeted relief to patients in a small trial. The method also improved various other conditions and may even help with weight loss. Find out how it works. Throughout history, dramatic changes in the climate often coincide with major revolutions and rebellions. Rapid warming or cooling often have a cascading effect on food production, leading to shortages and rising prices. As the effect of climate change increase today, will we see a repeat of history? Chapters: (00:00) Intro (00:22) 100,000-year-old organism (10:37) Brain implant treats chronic pain (18:02) How climate change leads to revolutions Hosted by Rowan Hooper and Penny Sarchet, with guests Alexandra Thompson, James Dinneen and Karen Lloyd. To read more about these stories, visit https://www.newscientist.com/ Learn more about your ad choices. Visit megaphone.fm/adchoices
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  • Could we end winter illness?; Cold fusion’s comeback; The delicious microbiome of chocolate
    Episode 317 Winter bugs are notoriously hard to vaccinate against. But as cold, flu and covid season is about to descend on us once more, one group researchers are working on an entirely new solution to the misery. A team out of Columbia University has been testing an mRNA-based treatment that could prime our immune systems to fight against any kind of viral infection, perhaps in the form of an asthma-like inhaler. But there is a catch… New life has been breathed into one of the most controversial ideas in science. In 1989, a surprising way to generate nuclear fusion at room temperature gained worldwide attention - but the initial experiment couldn’t be replicated. Dead in the water for many years, the idea of ‘cold fusion’ is now being revisited - and it could help us create futuristic electronics. Ever wondered what makes chocolate taste so good? As with many things, it turns out we have microbes to thank. Chocolate, like kimchi and cheese, is a fermented food product - and scientists are beginning to discover which microbes give chocolate its many flavours. These findings could help us create more delicious chocolate, or even create new flavours we’ve never tasted before. Chapters: (00:00) Intro (00:29) Could we end winter illness? (08:27) Cold fusion’s comeback (15:23) The delicious microbiome of chocolate Hosted by Penny Sarchet and Chelsea Whyte, with guests Michael Le Page, Alex Wilkins and Sam Wong. To read more about these stories, visit https://www.newscientist.com/ Learn more about your ad choices. Visit megaphone.fm/adchoices
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  • Climate special: How to fix the climate crisis with Tim Lenton and Kate Marvel
    Episode 316 “All of the other planets out there are just complete garbage. The Earth is the only good place.” – Kate Marvel The climate crisis can leave many of us feeling hopeless and overwhelmed. But, as climate scientists Kate Marvel and Tim Lenton say, there are many reasons to be optimistic.Both have new books out that hope to reframe the way we think about the issue. Kate’s book Human Nature grapples with the complicated emotions that the climate crisis evokes, from anger to hope and love – and explores how we can harness each of them to fight for a better future. Tim’s book Positive Tipping Points looks at the possibility that we may cause irreversible damage to the Earth’s climate system, from Amazon dieback to ice sheet collapse. But as the name suggests, he also examines the opportunities in leveraging global action against climate change to create “positive tipping points”. Chapters: (0:00) Intro (01:26) Why Tim and Kate have dedicated their lives to climate science (3:53) Exploring Kate’s book Human Nature - starting with anger (6:33) How Tim channels his climate anger (10:16) Processing the 9 emotions of Kate’s book (13:10) What are negative tipping points? (15:33) How to use positive tipping points (21:13) Where can we find hope for change right now? (23:16) The positive emotions that inspire climate action (26:50) Kate’s process of writing (29:52) Why non-violent campaigns are so effective (35:19) Have we seen any of these positive tipping points yet? (39:31) How Americans really feel about climate change (40:46) Kate and Tim’s dream outcomes for their books Hosted by Rowan Hooper and Madeleine Cuff, with guests Kate Marvel and Tim Lenton. To read more about these stories, visit https://www.newscientist.com/ Learn more about your ad choices. Visit megaphone.fm/adchoices
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  • 80 years since Hiroshima: Forgotten victims of the atomic bomb
    Episode 315 It’s been 80 years since the first and only use of nuclear weapons in war - events that altered the course of history. The consequences of the widespread destruction, deaths and nuclear fallout are still being dealt with today. On 6th August 1945, a bomb was dropped on Hiroshima in Japan, and three days later Nagasaki was also bombed. Tens of thousands of people were killed. Since then, many nuclear tests have been carried out. Despite efforts to clean up the fallout, a big threat looms… climate change. Not only does the changing climate risk dredging up old nuclear waste, worsening extreme weather events could even damage current nuclear facilities too. There’s also a lasting legacy felt by those who survived the bombs and their descendants, not just in Japan, but South Korea, too. The human cost doesn’t stop there. We hear about the communities who first mined the uranium needed for the bombs in the 1920s and 30s - as well as the health consequences for those living near nuclear test sites. Annie Jacobsen, author of Nuclear War: A Scenario, adds her thoughts on the current threat of nuclear war - and how nuclear technology has become even more destructive.  It wasn’t just people who survived the bombs - there are trees that made it through too.   Seeds have been gathered from these survivor trees and we learn how one of them is being  grown in the Wakehurst botanical garden.  Chapters: (01:32) Nuclear waste and the threat of rising seas (11:31) Atomic bomb survivors (24:35) Annie Jacobsen on the knife-edge of danger (27:40) The trees that survived the bombs Hosted by Rowan Hooper and Madeleine Cuff, with guests Jeremy Hsu, Michael Gerrard, MG Sheftall, Annie Jacobsen and Elinor Breman. To read more about these stories, visit https://www.newscientist.com/ Learn more about your ad choices. Visit megaphone.fm/adchoices
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  • Ozempic and Wegovy slow down biological ageing; creation of synthetic bacterium; geology of the Russian earthquake
    Episode 314 Weight-loss drugs Ozempic and Wegovy have been shown to slow down - or even reverse - the ageing process. In a trial of 84 people taking semaglutide, their biological age dropped by 3.1 years on average, with some organs becoming almost 5 years younger. Based on this new research, this finding could make these some of the most impactful anti-ageing drugs on the market. So how are they doing it? Scientists have very nearly created a new lifeform. A synthetic bacterium has been created with 101,000 changes to its genome - clearing up redundant code in its DNA. By freeing up codons in its genetic code, this bacteria could make new kinds of proteins unlike anything that exists naturally - and pave the way for creating virus resistance bacteria. The recent earthquake off the coast of east Russia was the sixth biggest ever recorded. Thankfully the ensuing tsunami has been manageable - unlike previous record-setting quakes. With two large “foreshocks” before the big one, we ask a professor of tectonics about the geology of the region.  Chapters: (00:34) Weight-loss drugs slow down ageing (10:59) Creation of a new synthetic bacterium (21:52) Geology of the Russian earthquake Hosted by Rowan Hooper and Sam Wong, with guests Alexandra Thompson, Michael Le Page, Andrew Steele, Wes Robertson and Lisa Mcneill. To read more about these stories, visit https://www.newscientist.com/ Learn more about your ad choices. Visit megaphone.fm/adchoices
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About The world, the universe and us

From the evolution of intelligent life, to the mysteries of consciousness; from the threat of the climate crisis to the search for dark matter, The world, the universe and us is your essential weekly dose of science and wonder in an uncertain world. Hosted by journalists Dr Rowan Hooper and Dr Penny Sarchet and joined each week by expert scientists in the field, the show draws on New Scientist’s unparalleled depth of reporting to put the stories that matter into context. Feed your curiosity with the podcast that will restore your sense of optimism and nourish your brain. For more visit newscientist.com/podcasts
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