Today we're asking how anyone can make sense of the deluge of climate change data that is almost continually published. By the end of last month, nearly 200 countries had signed up to the Paris climate change agreement, and in doing so they were nominally committing to keep global temperatures "well below" 2C. So now comes the tricky bit: How best to do that - and what is the scientific evidence for policymakers to decide? Climate change expert Dr Tamsin Edwards of the Open University joins Adam Rutherford to help us unpick the research. Last week a major new report on the State of the World's Plants was unveiled at Kew Gardens in London. There are some 391,000 vascular plants known to science - that's ones with vessels, xylem and phloem - and over 2000 were discovered last year alone. But just over a fifth of all plants are estimated to be threatened with extinction - and global climate change forms part of this threat. Our reporter Cathy Edwards met Professor Kathy Willis, Director of Science at Kew, to find out how plants are responding to the changing climate, and also spoke to Professor Yadvinder Malhi, Oxford University, and Kay Havens, Chicago Botanic Garden.The Review on Antimicrobial Resistance, headed by economist Jim O'Neill, was published today. Molecular microbiologist Professor Matt Hutchings from the University of East Anglia, gave us a brief summary.A new paper out this week looks into exactly what the act of making a phone call can reveal. The study, which was led by Patrick Mutchler and Jonathan Mayer at Stanford University in the States, is the culmination of work looking into what metadata really can show - you may have seen reports of some of their findings, as they've been revealing them in the public interest since 2013. They collected metadata volunteered by 823 participants, in total, more than 250,000 calls, and 1 million text messages. Steven Murdoch from the Information Security Research Group at University College London joined us to put this into context. As part of the BBC's Do Something Great season celebrating volunteers, Adam joined Professor Kate Jones from University College London on a Hampstead Heath bat watch, part of the citizen science project Bat Detective. Producers: Marnie Chesterton & Jen Whyntie.
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A weekly programme that illuminates the mysteries and challenges the controversies behind the science that's changing our world.
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Folge vom 19.05.2016Climate Change, State of the World's Plants, Antibiotic Resistance, Telephone Metadata, Bat Detective
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Folge vom 12.05.2016Genetics and education, Eyam plague, Pint of science, Labradors and chocolateThe biggest study of the relationship between genes and educational attainment - in this case, basically the measure of how long you stay in education - has been published this week. A huge number of environmental factors influence this trait, but genes also play a small role. In the new study, a large team of researchers looked at over 300,000 people and identified 74 genetic variants, slight differences in our DNA, that do seem to associate with how long those individuals stayed in formal education. Senior author Dan Benjamin, University of Southern California, and social genetics researcher Eva Krapohl from Kings College London helped steer us through this complex quagmire.The Derbyshire village of Eyam is famous amongst Plague historians because when the disease arrived in a bale of cloth in 1665, the local vicar took a bold step and quarantined the whole village. 260 villagers died, but the sacrifice is thought to have saved surrounding populations. This noted event yielded a rich data set, which Eyam residents Francine Clifford and her late husband John meticulously mined over the last few decades. When epidemiologist Xavier Didelot of Imperial College London visited the local museum whilst on holiday, he couldn't resist investigating.Later this month, in pubs around Britain, and bars in 11 other countries, audiences will gather to hear about everything from black holes to cancer treatments - all part of a phenomenon called 'Pint of Science'. Marnie Chesterton went to The Castle in Farringdon to hear more.Finally, last week we met Poppy, one of the Labradors likely to have a newly discovered genetic reason for eating her owners out of house and home. Poppy's most notable devouring was of a large birthday cake, resulting in a trip to the vet's to get her stomach pumped. A fellow cake-eating-Lab-owning listener got in touch to ask why this procedure was necessary. It all comes down to the flavour of the cake: Chocolate.Producers: Marnie Chesterton & Jen Whyntie.
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Folge vom 05.05.2016Human embryos, Transit of Mercury, Fishackathon, Fat labradorsIn a major advance in the field of embryology, scientists this week have kept human embryos alive in petri dishes for record amounts of time. The legal limit for keeping fertilised human embryos in the lab is 14 days, a cut-off point set in 1979. Back then, scientists were able to keep embryos alive for only a few days, meaning the limit was only a theoretical one. Advances mean that this week, in 2 papers, researchers have reached that limit. Professor Ali Brivanlou, Robert and Harriet Heilbrunn Professor of Stem Cell biology and molecular embryology at Rockefeller University is lead author on one of the papers, and Professor Bobbie Farsides is a clinical and biomedical ethicist at Brighton and Sussex Medical School. They join Adam to discuss the next steps for embryology. Should this limit curtail research?Next Monday is the transit of Mercury. 13 times a century, Mercury passes directly between us and the Sun, and creates a pinprick shadow, a pixel of black for about 8 hours. This strange planet has no atmosphere, but a lot explosive volcanic activity. It has an eccentric orbit - meaning its distance from the sun fluctuates wildly. A Mercury year is 88 Earth days, but a Mercury day lasts almost two mercury years. David Rothery is a professor of Planetary Sciences at the Open University. He reveals how scientists study this planet and explains how, and how not to view the transit of Mercury.Overfishing is one of the biggest threats to the health of our oceans. According to the UN, up to a third of the world's fisheries are overexploited or depleted. It is a huge complex problem with many inputs and outputs to compute. So who better to tackle it than a team of hackers? Recently, coders around the globe gathered to take on the challenge, in a 48-hour Fishackathon. Reporter Anand Jagatia went along and reports back to AdamMost dog lovers will know that Labradors are particularly keen to eat anything, all the time, at any time. As a result, some are a bit corpulent, even obese. The cause is likely to be in their genes. A new study in the current issue of Cell Metabolism has identified that genetic basis for the perpetual hunger. Eleanor Raffan from Cambridge University, geneticist and vet, led the study. She explains to Adam how she gathered a cohort of dogs.
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Folge vom 28.04.2016Chernobyl, Drones, Tree crickets, Cern30 years ago this week an explosion at the Chernobyl nuclear plant. A fire raged for 10 days, spewing radioactive materials on the surrounding area and was detected throughout much of a continent. Yet, so many decades on, why is it so difficult to accurately measure the impacts on human health? Richard Wakeford of the University of Manchester is an epidemiologist who has looked at the research done over the years, and he explains why making definitive connections between the Chernobyl explosion and long-term illnesses or premature deaths is so very difficult.In the last few days there have been reports that a drone hit a plane on its way into Heathrow. Investigators say there is so little evidence either way it is not possible to say whether it really was a drone, but either way, the story has raised concerns. BBC Inside science spoke to Dr Sue Wolfe of ARPAS, to find out how our increasingly crowded air space is regulated. And Adam goes drone flying with BBC innovations producer, Derrik Evans, to see how easy these things are to use.If the hum of drones is annoying, imagine the constant din of the rain forest, especially tricky if you're a cricket and you're trying to find a mate. We have a listen to the strategies they use to be heard above the cacophony in the company of Dr Tim Cockerill. Scientists at CERN have also been trying to sort out the wheat from the chaff, continuing their efforts to understand a blip in their data identified and scrutinised over the last few months. Jon Butterworth of UCL and CERN dons the Cloak of Speculation and talks about the possible implications for physics if it does indeed turn out to be a new, unpredicted, particle.