This week in the Planet Earth Podcast - we take a closer look at tiny marine plants, which underpin the entire marine food chain and play a vital role in the Earth's climate. Also, how scientists are using volcanic ash called tefra to tell how people may have responded to rapid environmental changes in the recent past. Like this podcast? Please help us by supporting the Naked Scientists

This week in the Planet Earth Podcast, how fungal infections could threaten our food security as well as the planet's amphibians; work under way to understand the ecosystems around the hydrothermal vents in the Southern Ocean; and how it's people, not buildings, that use energy. Like this podcast? Please help us by supporting the Naked Scientists

This week in the Planet Earth Podcast, Richard Hollingham hears about new air-quality monitoring that could help mitigate the effects of bad-air days; the effect of climate change on Mediterranean dwarf elephants; and exactly how many litres of water it took to make his morning coffee. Like this podcast? Please help us by supporting the Naked Scientists

This month, we celebrate ten years of Diamond and discover what it takes to get from green field site to functioning synchrotron. We take a look at the wide range of science that's taken place from the probing of viruses to develop vaccines and the exploring of meteorites to understand the formation of our solar system. We also come back to the present day to bring you the latest news and research from the light source... Like this podcast? Please help us by supporting the Naked Scientists

Cambridge Neuroscientists Dr Michael Hastings and Dr Akhilesh Reddy spoke at the annual Cambridge Neuroscience Seminar about their work on sleep.They discuss the importance of sleep for learning and memory, preventing cancer, the health of your heart, mopping up toxic waste in your body, winning that Olympic Gold medal and why you shouldn't have that midnight kebab! Dr Hannah Critchlow from the Naked Scientists went along to the seminar to discuss their work with them........ Like this podcast? Please help us by supporting the Naked Scientists

This week in the Planet Earth Podcast: Richard Hollingham finds out why the American signal crayfish is driving out one of the UK's native species; in our latest audio diary, Hannah Grist from the University of Aberdeen talks us through her research on European shags; and what noctilucent clouds tell us about our changing climate. Like this podcast? Please help us by supporting the Naked Scientists

Marine biologist Dr Joshua Drew from the Field Museum of Natural History in Chicago is using cutting edge communication technologies to bring the oceans alive in two very different parts of the planet. By connecting teenagers in Fiji and inner city Chicago, he's inspiring the next generation of marine scientists and galvanising them into conservation action. Like this podcast? Please help us by supporting the Naked Scientists

This week in the Planet Earth Podcast, Sue Nelson goes to the River Thames in central London to find out why nitrate pollution has trebled since the 1930s. Later on, she talks to a researcher about an unusual freshwater bulge in the Arctic, and asks if we should be concerned. Finally, we hear a round-up of some of the news from the natural world. Like this podcast? Please help us by supporting the Naked Scientists

What's your sense of direction like? And how good are you at reading a map? It turns out, these skills are down to two particular regions of the brain that keep track of where you are in relation to a destination and how longs it's going to take you get there. And to find out more, we took to the mean streets of Soho in London... Like this podcast? Please help us by supporting the Naked Scientists

This Month, Dr Hannah Critchlow opens up the mind to reveal the neurons controlling the inner workings of our brain and how we perceive the world around us... Like this podcast? Please help us by supporting the Naked Scientists