Science in Action

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Episodes

Date Title & Description Contributors
2024-11-14

  Drastic plastic reductions

Before December, the United Nations aims to have a global treaty in place covering efforts to limit global plastic production and pollution. In a paper in the journal Science, a team of scientists have used machine learning to estimate what happens by ...
  BBC World Service author
2024-11-07

  New ways to study coronaviruses

Many coronaviruses exist in nature that we don’t know much about. We don’t even know how and whether most of them might bind to human cells. Research published in Nature, by scientists at Wuhan and Washington Universities, describes a new way of design...
  BBC World Service author
2024-10-31

  Global warming strikes again

This week at least 150 people have been killed due to devastating flash flooding sweeping through areas of Valencia in Spain. Ana Camarasa Belmonte, Professor of Physical Geography at the University of Valencia, has been studying the flood patterns and...
  BBC World Service author
2024-10-24

  Betelbuddy and Silk Road Cities

Betelgeuse, one of the brightest and most famous stars in the northern night sky, has varied in brightness with an elusive pattern ever since observations began. Many theories exist as to why it ebbs and flows with apparently two distinct rhythms – one...
  BBC World Service author
2024-10-17

  Marvels of life and death

The “dewilding” effects of fish farming and mariculture are in the spotlight this week. Farmed fish can impact marine ecosystems in several ways, and surprisingly one of those is the effect it has on consumer perceptions of the impact of eating farmed ...
  BBC World Service author
2024-10-10

  Nobel convergence

In the week the Nobel prizes for science are announced, Roland Pease takes a look at the stories behind the breakthroughs being recognized, and the themes that connect them. From the discovery of the tiny fragments of RNA that regulate our cells’ behav...
  BBC World Service author
2024-10-03

  Excesses of Rain

As we were putting the finishing touches to last week’s Science in Action, the US National Weather Service was warning of Hurricane Helene’s fast approach to the Florida coast – alerting people to ‘unsurvivable’ storm surges of up to 6 metres. But the ...
  BBC World Service author
2024-09-26

  Historic weather extremes revealed using tree-rings

Valerie Trouet of the University of Arizona tells us how tree-ring data has been used to show how the jet stream has shaped extreme weather in Europe for centuries, influencing harvests, wildfires and epidemics. Monash University’s Andy Tomkins discus...
  BBC World Service author
2024-09-19

  Flash floods in the Sahara

The Sahara Desert has been experiencing unusually heavy rainfall due to an extratropical cyclone, causing flash floods in Morocco. We hear from Moshe Armon of the Hebrew University of Jerusalem. A 485 million-year temperature record of Earth reveals Ph...
  BBC World Service author
2024-09-12

  A landslide-induced megatsunami in Greenland

Nearly a year ago, the top of a mountain on the Greenland coast broke off and slid a thousand metres down into the Dickson Fjord. The impact created a tsunami that started two-hundred-metres-high and sloshed between the cliffs for nine days, producing ...
  BBC World Service author