Summary
Geoengineering is a controversial approach to dealing with climate change. Gaia Vince explores the process of putting chemicals in the stratosphere to stop solar energy reaching the earth.
When volcanoes erupt they put sulphur in the stratosphere. The particles reflect solar rays back into space and the planet cools down. Scientists are suggesting that it could be possible to put sulphur into the stratosphere using specialised aircraft or a very long pipe. But if this was implemented there could be impacts on rainfall and the ozone layer.
Another idea is to spray seawater to whiten clouds that would reflect more energy away from the earth.
Gaia Vince talks to the researchers who are considering solar radiation management. She also hears from social scientists who are finding out what the public think about the idea and who are asking who should make decisions about implementing this way of cooling the planet.
(Photo: The ocean with the sun rising in the horizon)
Transcript
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| 0:00.0 | Just before this BBC podcast gets underway, here's something you may not know. |
| 0:04.7 | My name's Linda Davies and I Commission Podcasts for BBC Sounds. |
| 0:08.5 | As you'd expect, at the BBC we make podcasts of the very highest quality featuring the most knowledgeable experts and genuinely engaging voices. |
| 0:18.0 | What you may not know is that the BBC makes podcasts about all kinds of things like pop stars, |
| 0:24.6 | poltergeist, cricket, and conspiracy theories and that's just a few examples. |
| 0:29.7 | If you'd like to discover something a little bit unexpected, find your next podcast over at BBC |
| 0:35.4 | Sounds. |
| 0:38.4 | Choosing what to watch. |
| 0:39.4 | Night after night. |
| 0:41.1 | The flicking through. The endless searching is a nightmare. We want to help you. On our |
| 0:46.7 | brand new podcast off the telly we share what we've been watching. |
| 0:50.3 | Cladie aider. Load to games, loads of fun, loads of screaming, lovely. |
| 0:55.0 | Off the telly with me Joanna Paige and me, Natalie Cassidy, |
| 0:59.0 | so your evenings can be a little less searching |
| 1:02.0 | and a lot more watching listen on BBC |
| 1:04.7 | sounds choosing what to watch night after night the flicking through the |
| 1:12.3 | endless searching is a nightmare. |
| 1:14.0 | We want to help you. |
| 1:16.0 | On our brand new podcast off the telly we share what we've been watching. |
| 1:20.0 | Cladie Aidea! |
| 1:22.0 | Load to games, loads of fun, loads of screaming. |
| 1:24.5 | Lovely. |
... |
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