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Hurricane Bertha is no more but she may or may not be heading for the UK this weekend. Join the Will, Sam H and Tim on the Barometer Podcast to find out about her journey, why such weather systems are difficult to forecast and the chances of bad weather at the weekend.

The podcast was recorded on Thursday 7th August, 2014. Check the Met Office website for updated forecasts and weather warnings here.
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Ex-Hurricane Bertha contemplates her next move (left side of image). Image of the North Atlantic on Thursday 7th August 2014 from the Moderate Resolution Imaging Spectroradiometer (MODIS) instrument on the TERRA satellite. Image courtesy of NASA.
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Join Hugo, Richard and Geraint on a tropical island adventure where we discover the importance of ozone near the equator. We discuss how ozone is transported though the atmosphere and ask the question: "How do the towering storm clouds in the tropics affect the composition of the atmosphere?" We travelled halfway across the globe to Papua New Guinea with our weather balloons to gather the data that we needed to find out.

This was recorded in February 2014 during the Co-ordinated Airborne Studies in the Tropics (CAST) campaign.

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Join Will, Eoghan and Sam as they discuss the impending football World Cup and what the weather in Brazil might have in store for the teams and fans. Managers, players and fans alike will be searching for a scapegoat for their forthcoming failure and the weather is likely to play a role.

Is there even a chance of snow at the World Cup?
Weather statistics sourced from Wikipedia, which utilises data from the World Meteorological Organisation, the National Oceanic and Atmospheric Administration and WeatherBase.
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Photograph of thunderstorms near the Parana River in southern Brazil in 1984 taken by an astronaut on the space shuttle. Will the weather rain on the World Cup parade? Image source: NASA Earth Observatory.
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Will and Sam are joined by Roz Pidcock from Carbon Brief to chat about communicating science and the recent Intergovernmental Panel on Climate Change (IPCC) reports, which have featured heavily at EGU 2014. Find out about the wide range of sessions relating to climate science that took place this week.

Also, stay tuned at the end for a special message.
You can find Roz's blog posts about the science on offer at EGU 2014 below:
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The 'Life of the Earth' exhibit at EGU 2014.
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Will and Sam catch up with Andreas Petzold from Forschungszentrum Jülich in Germany to talk about a program called IAGOS, which puts instruments on-board commercial aircraft to do routine measurements of the atmosphere. Join us to find out the benefits of such research and the important insights that we have gained from it.

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The 'Atmosphere of the Earth' exhibit at EGU 2014. Go inside a cloud!
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Sam catches up with Jane Robb, the Educational fellow for the EGU, to talk about all of the wonderful educational initiatives that EGU currently run, including the Geosciences Information for Teachers (GIFT) Workshops and the “I’m a Geoscientist get me out of here” project. Jane also provides some top tips to all scientists that want to communicate their research to a school audience. 

Sam and Jane also talk briefly about the gamification of crowdsourcing and citizen science, in order to encourage members of the public involved with helping scientists to carry out their research. The game that Sam mentions is called Cropland Capture, and it is well worth a gander!

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The 'Space and the earth' exhibition at EGU 2014. 

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Sam and Will meet up to discuss events at day 2 of the EGU General Assembly; of particular interest was the session on “The Role of Geoscientists in Public Policy”, where a panel including representatives from the Parliamentary Office of Science and Technology (POST) discussed the role of geosciences and public policy. 

Also discussed is the potential creation of a new geological era: the Anthropocene. Has mankind been responsible for creating this, and where is it most evident?

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The ‘Waters of the Earth’ exhibition at EGU 2014. 

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Sam and Will report back on day one of the Euro Geosciences Union 2014, the largest geosciences conference in Europe. As well as talking about some of the enjoyable sessions that have already taken place (unsurprisingly Will attended some talks on secondary organic aerosols), they catch up with Mathew Reeve and Will Ball from ClimateSnack.

ClimateSnack is an international and inter-disciplinary community where early career scientists interact in order to improve their writing and communication skills. For those of you lucky enough to be at this year’s EGU then come along to the town hall meeting on this Thursday (1st may) evening from 19:00 – 20:00 in Room R13 to hear all about how to better understand your audience. 

EGURocks.jpegThe fabulous ‘Bring Your Own Rock’ stand at EGU. 

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After an episode of poor air quality last week, Sam is joined by Will Morgan and Eoghan Darbyshire to chat about all things air pollution.

The conditions required for such UK air pollution events, the sources and the health impacts are all discussed. Was all the media hype justified? How often do these events occur? What's the outlook over the next few weeks? Find out by listening to this episode of the Barometer!

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UK Air pollution Forecast on Wednesday 2nd April. Source: Defra

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Jennifer Muller chats to Will Morgan and Michelle Cain (@civiltalker), from the University of Cambridge, after the Royal Meteorological Society's Atmospheric Chemistry Special Interest Group meeting on "When the sun goes down: Atmospheric chemistry at night".


They discuss why atmospheric scientists are interested in what goes on at night, how that differs with the day and what their personal highlights were from the day/night. 

There is also some bonus discussion on geoengineering, where we find out that diamonds are a geoengineer's best friend.

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Night turns to day during a flight on the BAe-146 research aircraft during the RONOCO campaign discussed in the podcast. Photo courtesy of Jennifer Muller.
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