Podcasts about planet earth online

This week in the Planet Earth Podcast: decoding the ash tree's entire genetic sequence to produce a strain which is more resilient to ash dieback; the challenges of extracting biofuels from algae; and the latest news on Planet Earth Online. Like this podcast? Please help us by supporting the Naked Scientists

This week in the Planet Earth Podcast: decoding the ash tree's entire genetic sequence to produce a strain which is more resilient to ash dieback; the challenges of extracting biofuels from algae; and the latest news on Planet Earth Online.

This week in the Planet Earth Podcast: decoding the ash tree's entire genetic sequence to produce a strain which is more resilient to ash dieback; the challenges of extracting biofuels from algae; and the latest news on Planet Earth Online. 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

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

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.

This week in the Planet Earth Podcast: how the famous White Cliffs of Dover could be made of fish poo (at least partially), why one researcher is so interested in dead whales, and why the Japan earthquake was so powerful and devastating. Join Richard Hollingham and Sue Nelson to find out more... Like this podcast? Please help us by supporting the Naked Scientists

This week in the Planet Earth Podcast: how the famous White Cliffs of Dover could be made of fish poo (at least partially), why one researcher is so interested in dead whales, and why the Japan earthquake was so powerful and devastating. Join Richard Hollingham and Sue Nelson to find out more... Like this podcast? Please help us by supporting the Naked Scientists

This week in the Planet Earth Podcast: how the famous White Cliffs of Dover could be made of fish poo (at least partially), why one researcher is so interested in dead whales, and why the Japan earthquake was so powerful and devastating. Join Richard Hollingham and Sue Nelson to find out more...

This week in the Planet Earth Podcast - how the Romans recycled glass, dinosaur colour, and what Europe's gravity mission tells us about ocean currents. Did you know that the height of the world's oceans can vary by as much as 200 metres? These huge differences depend almost entirely on very slight changes in gravity across the world. Sue Nelson goes to the National Oceanography Centre in Southampton to find out more. We also hear that even the Romans recycled glass. But were they being green, or did they have other reasons? Richard Hollingham goes to Norwich to meet the archaeologists... Like this podcast? Please help us by supporting the Naked Scientists

This week in the Planet Earth Podcast - how the Romans recycled glass, dinosaur colour, and what Europe's gravity mission tells us about ocean currents. Did you know that the height of the world's oceans can vary by as much as 200 metres? These huge differences depend almost entirely on very slight changes in gravity across the world. Sue Nelson goes to the National Oceanography Centre in Southampton to find out more. We also hear that even the Romans recycled glass. But were they being green, or did they have other reasons? Richard Hollingham goes to Norwich to meet the archaeologists... Like this podcast? Please help us by supporting the Naked Scientists

This week in the Planet Earth Podcast - how the Romans recycled glass, dinosaur colour, and what Europe's gravity mission tells us about ocean currents. Did you know that the height of the world's oceans can vary by as much as 200 metres? These huge differences depend almost entirely on very slight changes in gravity across the world. Sue Nelson goes to the National Oceanography Centre in Southampton to find out more. We also hear that even the Romans recycled glass. But were they being green, or did they have other reasons? Richard Hollingham goes to Norwich to meet the archaeologists with the answer. Finally, what colour do you think dinosaurs were? Until now artists have been free to paint them whatever colour they felt like. But not anymore - scientists now have a way of figuring out what colour they were. Richard goes to Bristol University to get the low-down from one of the scientists at the forefront of this research.

In this latest watery-themed Planet Earth Podcast, Richard Hollingham hears how the underwater world isn't the soundless place you might imagine. From chirping, gurgling and snapping sounds from busy coral reefs to clicking sperm whales, scientists are finding that all sorts of marine life use sounds to find a suitable home, to find a mate, to avoid being eaten or to communicate. First up, we hear from a marine biologist from the University of Bristol who explains how manmade noise might not affect just whales and dolphins, but also much smaller creatures that live in and around coral reefs. Later, Richard meets a British Antarctic Survey scientist to find out how fossils of tiny marine creatures called bryozoans give us clues about when the West Antarctic Ice Sheet last collapsed. We also hear the strange clicking sounds sperm whales use to communicate with each other, and find out how very far leatherback turtles can swim.

In this latest watery-themed Planet Earth Podcast, Richard Hollingham hears how the underwater world isn't the soundless place you might imagine. From chirping, gurgling and snapping sounds from busy coral reefs to clicking sperm whales, scientists are finding that all sorts of marine life use sounds to find a suitable home, to find a mate, to avoid being eaten or to communicate. First up, we hear from a marine biologist from the University of Bristol who explains how manmade noise might not affect just whales and dolphins, but also much smaller creatures that live in and around coral reefs.... Like this podcast? Please help us by supporting the Naked Scientists

In this latest watery-themed Planet Earth Podcast, Richard Hollingham hears how the underwater world isn't the soundless place you might imagine. From chirping, gurgling and snapping sounds from busy coral reefs to clicking sperm whales, scientists are finding that all sorts of marine life use sounds to find a suitable home, to find a mate, to avoid being eaten or to communicate. First up, we hear from a marine biologist from the University of Bristol who explains how manmade noise might not affect just whales and dolphins, but also much smaller creatures that live in and around coral reefs.... Like this podcast? Please help us by supporting the Naked Scientists

It seems that hardly a week goes by without a major earthquake striking somewhere in the world, which may be why many people have been asking scientists at the British Geological Survey if earthquakes are getting more frequent. Richard Hollingham talks to expert seismologist Brian Baptie from BGS, who uses clever musical software to give us the answer. We also hear from Plymouth Marine Laboratory scientists on a boat off the coast of Cornwall in the UK. They're sampling seawater and sediment from the seafloor to try to understand how marine ecosystems change from one month to the next,... Like this podcast? Please help us by supporting the Naked Scientists

It seems that hardly a week goes by without a major earthquake striking somewhere in the world, which may be why many people have been asking scientists at the British Geological Survey if earthquakes are getting more frequent. Richard Hollingham talks to expert seismologist Brian Baptie from BGS, who uses clever musical software to give us the answer. We also hear from Plymouth Marine Laboratory scientists on a boat off the coast of Cornwall in the UK. They're sampling seawater and sediment from the seafloor to try to understand how marine ecosystems change from one month to the next,... Like this podcast? Please help us by supporting the Naked Scientists

It seems that hardly a week goes by without a major earthquake striking somewhere in the world, which may be why many people have been asking scientists at the British Geological Survey if earthquakes are getting more frequent. Richard Hollingham talks to expert seismologist Brian Baptie from BGS, who uses clever musical software to give us the answer. We also hear from Plymouth Marine Laboratory scientists on a boat off the coast of Cornwall in the UK. They're sampling seawater and sediment from the seafloor to try to understand how marine ecosystems change from one month to the next, coming across many weird and wonderful creatures in the process. Finally we get an action-packed update from Cambridge scientist Tim Cockerill, who's in northern Borneo investigating the effects of palm plantations on the biodiversity of rainforest insects. Sounds like fun? Not until you hear about the leeches.

In this Planet Earth podcast, Sue Nelson reports from the Royal Botanic Gardens, Kew where she finds out that some plants like the Snake's Head Fritillary have enormous amounts of DNA in their genomes. These plants struggle in extreme environments, so how will they cope under climate change? We also hear from the British Antarctic Survey's medical doctor Claire Lehman in one of our unique audio diaries. Claire joins the diving team for a refreshing dive under the Antarctic ice. Later, Sue meets a fossil-tree expert at Cardiff University. Chris Berry describes how he went about identifying... Like this podcast? Please help us by supporting the Naked Scientists

In this Planet Earth podcast, Sue Nelson reports from the Royal Botanic Gardens, Kew where she finds out that some plants like the Snake's Head Fritillary have enormous amounts of DNA in their genomes. These plants struggle in extreme environments, so how will they cope under climate change? We also hear from the British Antarctic Survey's medical doctor Claire Lehman in one of our unique audio diaries. Claire joins the diving team for a refreshing dive under the Antarctic ice. Later, Sue meets a fossil-tree expert at Cardiff University. Chris Berry describes how he went about identifying... Like this podcast? Please help us by supporting the Naked Scientists

In this Planet Earth podcast, Sue Nelson reports from the Royal Botanic Gardens, Kew where she finds out that some plants like the Snake's Head Fritillary have enormous amounts of DNA in their genomes. These plants struggle in extreme environments, so how will they cope under climate change? We also hear from the British Antarctic Survey's medical doctor Claire Lehman in one of our unique audio diaries. Claire joins the diving team for a refreshing dive under the Antarctic ice. Later, Sue meets a fossil-tree expert at Cardiff University. Chris Berry describes how he went about identifying the 385 million-year-old fossilised remains of trees in New York State.

This week, Richard Hollingham finds out that bowerbirds are not just brilliant at making elaborate bowers, they're also good at mimicking other birds and pretty much most sounds they hear - including human voices. He also goes to a Scottish forest to meet researchers from the University of Edinburgh who are using a 220-metre high TV tower to measure greenhouse gas concentrations from across Scotland and all the way to Ireland and even as far as Canada. Lastly, during Richard's recent trip to the Arctic onboard the RRS James Clark Ross, he spoke to a scientist who explained how a small yellow... Like this podcast? Please help us by supporting the Naked Scientists

This week, Richard Hollingham finds out that bowerbirds are not just brilliant at making elaborate bowers, they're also good at mimicking other birds and pretty much most sounds they hear - including human voices. He also goes to a Scottish forest to meet researchers from the University of Edinburgh who are using a 220-metre high TV tower to measure greenhouse gas concentrations from across Scotland and all the way to Ireland and even as far as Canada. Lastly, during Richard's recent trip to the Arctic onboard the RRS James Clark Ross, he spoke to a scientist who explained how a small yellow submarine is helping scientists understand much more about Arctic ocean currents.

This week, Richard Hollingham finds out that bowerbirds are not just brilliant at making elaborate bowers, they're also good at mimicking other birds and pretty much most sounds they hear - including human voices. He also goes to a Scottish forest to meet researchers from the University of Edinburgh who are using a 220-metre high TV tower to measure greenhouse gas concentrations from across Scotland and all the way to Ireland and even as far as Canada. Lastly, during Richard's recent trip to the Arctic onboard the RRS James Clark Ross, he spoke to a scientist who explained how a small yellow... Like this podcast? Please help us by supporting the Naked Scientists

In this Planet Earth podcast, Sue Nelson goes to the Eden Project in Cornwall, southwest England and to the South Downs in southeast England to find out what butterfly research is telling us about climate change. As you might expect, there's some bad news to report, but surprisingly there's also hopeful news - at least for the silver spotted skipper. Meanwhile Richard Hollingham goes to Plymouth - also in southwest England - to hear how long-term monitoring buoys in the English Channel have helped reveal, among other things, that the water has gradually been getting warmer. Like this podcast? Please help us by supporting the Naked Scientists

In this Planet Earth podcast, Sue Nelson goes to the Eden Project in Cornwall, southwest England and to the South Downs in southeast England to find out what butterfly research is telling us about climate change. As you might expect, there's some bad news to report, but surprisingly there's also hopeful news - at least for the silver spotted skipper. Meanwhile Richard Hollingham goes to Plymouth - also in southwest England - to hear how long-term monitoring buoys in the English Channel have helped reveal, among other things, that the water has gradually been getting warmer. Like this podcast? Please help us by supporting the Naked Scientists

In this Planet Earth podcast, Sue Nelson goes to the Eden Project in Cornwall, southwest England and to the South Downs in southeast England to find out what butterfly research is telling us about climate change. As you might expect, there's some bad news to report, but surprisingly there's also hopeful news - at least for the silver spotted skipper. Meanwhile Richard Hollingham goes to Plymouth - also in southwest England - to hear how long-term monitoring buoys in the English Channel have helped reveal, among other things, that the water has gradually been getting warmer.

Scientists know that fluffy stratocumulus clouds act like a blanket on the Earth - they stop warm air escaping, but also reflect the Sun's energy back out to space. But they have no idea if cirrus clouds, which are high up in the atmosphere and made of ice, do the same. So Dr Paul Connolly makes ice clouds inside the 10-metre-high, three-storey ice cloud chamber - which looks a bit like a giant fridge freezer - to find out. To hear how the chamber works, Sue Nelson goes to Manchester to meet him. Also in the programme, find out how a tiny wasp, just 1.5 millimetres long, can pollinate fig trees 160 kilometres apart. And after the successful launch of the European Space Agency's Soil Moisture and Ocean Salinity (SMOS) satellite earlier this month, Professor Meric Srokosz from the National Oceanography Centre, Southampton, tells us why he's pinning his hopes on the data. Finally, Richard Hollingham gets more than he bargained for when he visits the venomous snake facility at Bangor University.

With efforts to improve energy efficiency focussed on green transport to sustainable power generation, growing your own food to reducing waste, it's often easy to forget that the very buildings we live and work in could also be made energy efficient. But how do you retrofit old buildings without ruining their architectural character? One researcher from the UK Energy Research Centre explains where you might start. Scientists at the University of Birmingham tell Sue Nelson how they're trying to understand when and why humans developed the ability to walk on two legs; with the help of some human subjects, a manmade rainforest canopy and some orangutans. We also hear from the British Antarctic Survey's GP at Rothera Research Station in the West Antarctica Peninsula who explains what life's like on the base.

With efforts to improve energy efficiency focussed on green transport to sustainable power generation, growing your own food to reducing waste, it's often easy to forget that the very buildings we live and work in could also be made energy efficient. But how do you retrofit old buildings without ruining their architectural character? One researcher from the UK Energy Research Centre explains where you might start. Scientists at the University of Birmingham tell Sue Nelson how they're trying to understand when and why humans developed the ability to walk on two legs; with the help of some... Like this podcast? Please help us by supporting the Naked Scientists

With efforts to improve energy efficiency focussed on green transport to sustainable power generation, growing your own food to reducing waste, it's often easy to forget that the very buildings we live and work in could also be made energy efficient. But how do you retrofit old buildings without ruining their architectural character? One researcher from the UK Energy Research Centre explains where you might start. Scientists at the University of Birmingham tell Sue Nelson how they're trying to understand when and why humans developed the ability to walk on two legs; with the help of some... Like this podcast? Please help us by supporting the Naked Scientists

Everyone loves a rockpool, and Sue Nelson nearly takes a dive into one in this week's podcast while finding out about the riches they contain. She visits the Anglesey coast of north Wales to learn what these mini marine laboratories can tell us about the value of biodiversity. The effects of climate change range from rising temperatures and higher sea levels to extreme weather and mass extinctions. Richard Hollingham reports from the Plymouth Marine Laboratory where scientists are investigating another, hidden process - increasing ocean acidification. And finally we learn how scientists are using pan scourers to find out how communities of marine creatures might respond to chemical changes in our oceans.

Everyone loves a rockpool, and Sue Nelson nearly takes a dive into one in this week's podcast while finding out about the riches they contain.She visits the Anglesey coast of north Wales to learn what these mini marine laboratories can tell us about the value of biodiversity.The effects of climate change range from rising temperatures and higher sea levels to extreme weather and mass extinctions. Richard Hollingham reports from the Plymouth Marine Laboratory where scientists are investigating another, hidden process - increasing ocean acidification.And finally we learn how scientists are using... Like this podcast? Please help us by supporting the Naked Scientists

Everyone loves a rockpool, and Sue Nelson nearly takes a dive into one in this week's podcast while finding out about the riches they contain.She visits the Anglesey coast of north Wales to learn what these mini marine laboratories can tell us about the value of biodiversity.The effects of climate change range from rising temperatures and higher sea levels to extreme weather and mass extinctions. Richard Hollingham reports from the Plymouth Marine Laboratory where scientists are investigating another, hidden process - increasing ocean acidification.And finally we learn how scientists are using... Like this podcast? Please help us by supporting the Naked Scientists

You could be forgiven for thinking the freezing seas around Antarctica are pretty barren and lifeless. But, as Richard Hollingham soon finds out, this couldn't be further from the truth.The Census of Marine Life is building up a picture of the richness and diversity of life in the world's oceans and has so far found thousands of species on shelves around the frozen continent. Incredibly, scientists are still finding new species.At this rate, researchers will soon have documented 17,000 species living on coastal shelves in the region. Richard meets British Antarctic Survey researcher Huw Griffiths to find out more.Later, hear why the recent Icelandic volcano presented scientists with a unique opportunity to study the ash cloud. Also, find out how a ground-breaking study has revealed where giant sauropod dinosaurs preferred to live.Finally, in the first of our audio diaries, we hear from a bird ecologist in Ireland who talks us through exactly how you go about tagging geese migrating to the Arctic.

You could be forgiven for thinking the freezing seas around Antarctica are pretty barren and lifeless. But, as Richard Hollingham soon finds out, this couldn't be further from the truth.The Census of Marine Life is building up a picture of the richness and diversity of life in the world's oceans and has so far found thousands of species on shelves around the frozen continent. Incredibly, scientists are still finding new species.At this rate, researchers will soon have documented 17,000 species living on coastal shelves in the region. Richard meets British Antarctic Survey researcher Huw... Like this podcast? Please help us by supporting the Naked Scientists

You could be forgiven for thinking the freezing seas around Antarctica are pretty barren and lifeless. But, as Richard Hollingham soon finds out, this couldn't be further from the truth.The Census of Marine Life is building up a picture of the richness and diversity of life in the world's oceans and has so far found thousands of species on shelves around the frozen continent. Incredibly, scientists are still finding new species.At this rate, researchers will soon have documented 17,000 species living on coastal shelves in the region. Richard meets British Antarctic Survey researcher Huw... Like this podcast? Please help us by supporting the Naked Scientists

In this week's Planet Earth podcast from the impressively-named Diamond Light Source in Oxfordshire, England, hear how two researchers are using hi-tech physics to study different aspects of the environment.The Diamond synchrotron is like a giant, silver doughnut, is more than half a kilometre around and - according to the blurb - you could fit eight St Paul's cathedrals inside.You might imagine a huge machine like this is used only for physics experiments. But it turns out it's used to study everything from the nature of matter to food and new medicines.One researcher explains how his studies of earthworms at Diamond could help clean up contaminated soils. Another scientist tells us how his mussel shell research at the synchrotron may ultimately help make stronger materials for aeroplanes and hip replacements.Finally, find out how irrigation techniques used by ancient indigenous cultures could help Peru cope with water shortages caused by its disappearing glaciers. And hear how high speed winds off the coast of Greenland affect how heat moves around the world's oceans.

Look around the English countryside and you'll find animals and plants that shouldn't be there - from Muntjac deer to Mitten crabs, Harlequin ladybirds to Tree of Heaven.So-called invasive species are reckoned to be one of the world's greatest threats to native wildlife. And when you factor in a changing climate, the situation gets even more complicated.Richard Hollingham meets an invasive species expert from the Centre for Ecology Hydrology who tells us not only what we can expect, but also what you can do to help.We also hear from a climate expert at the UK Met Office to find out why he believes climate scientists should take responsibility for communicating their science to the world.Finally, we hear how researchers figured out that a pit full of decapitated bodies in Dorset were Vikings and why small honeybees don't do as well as their normal-sized peers when it comes to mating.

In this week's Planet Earth podcast from the impressively-named Diamond Light Source in Oxfordshire, England, hear how two researchers are using hi-tech physics to study different aspects of the environment.The Diamond synchrotron is like a giant, silver doughnut, is more than half a kilometre around and - according to the blurb - you could fit eight St Paul's cathedrals inside.You might imagine a huge machine like this is used only for physics experiments. But it turns out it's used to study everything from the nature of matter to food and new medicines.One researcher explains how his studies... Like this podcast? Please help us by supporting the Naked Scientists

In this week's Planet Earth podcast from the impressively-named Diamond Light Source in Oxfordshire, England, hear how two researchers are using hi-tech physics to study different aspects of the environment.The Diamond synchrotron is like a giant, silver doughnut, is more than half a kilometre around and - according to the blurb - you could fit eight St Paul's cathedrals inside.You might imagine a huge machine like this is used only for physics experiments. But it turns out it's used to study everything from the nature of matter to food and new medicines.One researcher explains how his studies... Like this podcast? Please help us by supporting the Naked Scientists

Look around the English countryside and you'll find animals and plants that shouldn't be there - from Muntjac deer to Mitten crabs, Harlequin ladybirds to Tree of Heaven.So-called invasive species are reckoned to be one of the world's greatest threats to native wildlife. And when you factor in a changing climate, the situation gets even more complicated.Richard Hollingham meets an invasive species expert from the Centre for Ecology Hydrology who tells us not only what we can expect, but also what you can do to help.We also hear from a climate expert at the UK Met Office to find out why he... Like this podcast? Please help us by supporting the Naked Scientists

Look around the English countryside and you'll find animals and plants that shouldn't be there - from Muntjac deer to Mitten crabs, Harlequin ladybirds to Tree of Heaven.So-called invasive species are reckoned to be one of the world's greatest threats to native wildlife. And when you factor in a changing climate, the situation gets even more complicated.Richard Hollingham meets an invasive species expert from the Centre for Ecology Hydrology who tells us not only what we can expect, but also what you can do to help.We also hear from a climate expert at the UK Met Office to find out why he... Like this podcast? Please help us by supporting the Naked Scientists

Coral reefs are among the most beautiful habitats in the world. As well as being rich in biodiversity, they're vital for the local economies that depend on them for fishing, tourism or protection from storms.While most of us are aware that ocean acidification is bad for coral reefs, scientists are now finding that coral communities are facing other threats from climate change.Richard Hollingham meets three coral reef experts to find out more - not in some tropical paradise but in the basement of a 1960s towerblock at the University of Essex.Later in the programme we hear from two insect... Like this podcast? Please help us by supporting the Naked Scientists

Coral reefs are among the most beautiful habitats in the world. As well as being rich in biodiversity, they're vital for the local economies that depend on them for fishing, tourism or protection from storms.While most of us are aware that ocean acidification is bad for coral reefs, scientists are now finding that coral communities are facing other threats from climate change.Richard Hollingham meets three coral reef experts to find out more - not in some tropical paradise but in the basement of a 1960s towerblock at the University of Essex.Later in the programme we hear from two insect experts at the University of Cambridge, who explain why it might be wise for oil palm producers to nurture patches of rainforest close to and among their plantations.We also find out why scientists think an asteroid caused the extinction of the dinosaurs, rather than huge volcanoes, why global warming could lead to more male turtles than female turtles and how household waste is being linked with pollution in rivers.

Coral reefs are among the most beautiful habitats in the world. As well as being rich in biodiversity, they're vital for the local economies that depend on them for fishing, tourism or protection from storms.While most of us are aware that ocean acidification is bad for coral reefs, scientists are now finding that coral communities are facing other threats from climate change.Richard Hollingham meets three coral reef experts to find out more - not in some tropical paradise but in the basement of a 1960s towerblock at the University of Essex.Later in the programme we hear from two insect... Like this podcast? Please help us by supporting the Naked Scientists

Willow, palm, miscanthus and other energy crops are being touted as a possible solution to our growing energy security problems. Some people are suggesting that they could help replace fossil fuels, plugging Britain's energy gap and cutting our carbon footprint.But before we go down that route, wouldn't it be sensible to find out how these crops affect the environment?That's the very question David Bohan from Rothamsted Research is trying to answer. He's researching how miscanthus and willow affect native biodiversity while looking at where these crops should be sited to have minimal environmental impact.Also in this week's podcast, we find out why 25 February will be a nail-biter for many scientists, not least for those from the Centre for Polar Observation and Modelling at University College London.Later we'll hear how British winters are ending an average of 11 days earlier compared with the 1970s, why red leg bands put male zebra finches in front of their rivals and what next for a group of scientists that has just returned from exploring volcanic vents in the Southern Ocean.

This week we talk to two researchers about the technological solutions some scientists say we might have to use to tackle climate change. With average temperatures expected to rise by 2C this century, and efforts to cut greenhouse emissions proving painfully slow so far, scientists are saying it might be prudent to have a plan B. Professor Tim Lenton and Dr Nem Vaughan from the University of East Anglia explain the differences between the two approaches to geoengineering - removing carbon dioxide from the atmosphere and reflecting sunlight to keep temperatures down. Later on we find out how scientists use a field full of radars in Wales to help forecast extreme weather. We also hear what the UK Government's chief scientific advisor thinks about the latest climate change controversies in the news, how researchers have figured out what colour dinosaurs were and why carpet sea squirts have been spotted in Scotland.

Mention the word archaeology and you might conjure up an image of Tony Robinson from Channel 4's Time Team getting down to a dig in an ancient burial site in an attempt to find some telling artefacts. But these days, people researching the ancient past have some additional, very sophisticated tools up their sleeves. Richard Hollingham visits the Natural Environment Research Council's Isotope Geosciences Laboratory near Nottingham to find out what isotope geosciences are and why they're such an important tool for archaeologists. Later on we hear why fossil hunting is just kid's stuff for one scientist: Russell Garwood from Imperial College London shows Sue Nelson how he uses medical technology to see ancient spiders in 3D. Also, how scientists know that sticklebacks understand all about virtues like patience, how Arctic terns fly an epic 80,000 kilometres every year on their way from the Arctic to the Antarctic and back again, and why corals may be better able to recover from fishing damage than scientists thought.

In this week's podcast, Richard Hollingham strikes gold - literally - while Sue Nelson finds out why weather forecasters still struggle to predict sudden, violent summer storms. We'll also be hearing why scientists may be a step closer to getting rid of the American mink from the Outer Hebrides and how to run away from a Tyrannosaurus rex. Banks may have collapsed, shares plummeted and currencies faltered over the last couple of years, but if you put your money in gold, you could have made a tidy profit - the metal recently reached its highest value ever. Great news if there's a gold mine nearby, which funnily enough isn't as unlikely as you might think. As well as going gold-panning, Richard visits Northern Ireland's only gold mine and finds out why there's such a market for Northern Irish gold. Also, Sue Nelson meets cloud expert Dr Andrew Russell from the University of Manchester. Andy talks about the work he's doing to make forecasting storms easier. Finally, find out what scientists are doing to understand why some Antarctic penguin colonies are growing, while others are declining.