BBC Inside Science

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Factual: Science & Nature

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A weekly programme looking at the science that's changing our world.

A weekly programme that illuminates the mysteries and challenges the controversies behind the science that's changing our world.

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BBC Inside Science: Reproducibility crisis in science; Aeolus wind-measuring satellite; electric cars

Reproducibility crisis in science; Aeolus wind-measuring satellite; electric cars

BBC Radio 4 - BBC Inside Science, Reproducibility crisis in science; Aeolus wind-measuring satellite; electric cars

Reproducibility crisis in science, Aeolus wind-measuring satellite, and electric cars.

What is the reproducibility crisis in science and what can be done about it? ESA's Aeolus wind measuring satellite is now informing weather models. How green are electric cars?

Science is built upon the idea that results can be verified by others. Scientists do their experiments and write up their methods and results and submit them to a journal that sends them to other scientists, who check them and if they pass muster, the study gets published for further scrutiny. One of the keystones of this process is that results can be reproduced. If your results can’t be replicated, something is amiss. Over the last few years, particularly in the field of psychology, many high profile findings have not been reproduced. Now, the same problems that have plagued psychology are spilling over into other areas. This week, a study showed that ocean acidification does not significantly alter fish behaviour, as had been reported several times before. Adam Rutherford discusses the crisis with Matthew Cobb, Professor of Zoology at Manchester University.

ESA’s Aeolus mission was launched in August 2018. It’s one of the European Space Agency’s Earth Explorer satellites. The Aeolus satellite uses lasers to monitor the wind by firing an ultraviolet laser beam into the atmosphere and catching the light’s reflection as it scatters off molecules and particles carried along in the air. It was planned to be very much a proof of principle mission, testing the science, with longer-term plans for a whole constellation of wind monitoring satellites. But Aeolus has performed so well in the tests that, unusually for meteorological science, the results are now considered robust enough to be inputted into the European Centre for Medium-Range Weather Forecasts models.

The UK is aiming to phase out conventional combustion engines in favour of more energy-efficient, less polluting electric vehicles by 2040. In response to a listener’s question on the cleanliness of these machines, BBC Inside Science reporter, Tristan Varela, conducts an investigation in the streets, garages, and laboratories of London. He finds that electric cars are relatively clean in the UK, where energy generation from renewable sources has recently overtaken fossil fuels. However, sales of new electric cars are still heavily outweighed by large, fossil fuel hungry, SUVs. But some people are instead converting existing cars to make their vehicles more environmentally-friendly. 

Producer - Fiona Roberts

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