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SpaceX Starlink, Global Warming and Introduction | Interview series with Didier Queloz (0/3)



This is an introduction to our interview series on exoplanets with Nobel Prize Laureate Didier Queloz with an audio extract where he talks about global warming issues.

0:00 Nobel Prize
1:30 Arranging the interview
1:55 Interview setup
2:48 Topics covered in the interview
3:57 SpaceX Starlink
6:02 Didier talks about Global Warming
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The Low Earth Orbit Satellite Population and Impacts of the SpaceX Starlink Constellation:

https://arxiv.org/abs/2003.07446
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This is a brief extract from the audio recording:

Didier Queloz. Venus 400 million years ago, 500 million years ago may have been like the Earth and ended up with a runaway greenhouse effect because it lacked a carbon recycling mechanism. We still have the system here, but there is a problem. We pollute so much the system that we will stop the global warming and the society doesn’t realise what’s going on. In 20 years it will become really serious. I keep saying that we need to have New York City under water for people to realise. It’s going to come in 20 years. You know that they are building walls right now.
We need also a new bunch of economists, who are working seriously right now with the physicists and that are trying to assess the economic cost. Have you considered the impact on the economy of global warming?
It’s just short term. Economy should also be long term.

The way economy has been taught and the way it has been used is a catastrophe right now. So we need to talk to economists, and tell them “look guys, do your job, try to assess the impact on the economy of global warming in 20 years, 50 year”. If rise the ocean by 2-3 metre what is the impact on the cost to protect the city. 30% of the cities are next to the ocean. So what is the impact?

You should do the full study. Let’s imagine this is going to happen. You count the effect on the cities, you see how much you need to build the wall. It takes time to do all that. Most of the big cities will be under water. Even if you are not under water, you’ll have to deal with the glaciers that will be gone, the permafrost will be melting. In Switzerland the (melting of the) permafrost is a serious threat. So we have to run the math and at the end you may find out, ok, let’s keep warming, society will change, we will have to change the way people are living on Earth. There will be some places in the Earth where it will be impossible to live because of the heat. So, what are we going to do? Are we going to accept these people. Some of the islands will be under water. Are we going to accept these people as “global warming refugees”? These are interesting questions that we should ask and I think this has not started yet.

I would rather prefer to hear “Ok, I agree on the fact, buy I don’t care because there is much more money in keeping the warming up, than trying to stop it”. That’s fine. I’m happy for that if they do it. But let’s do it that way and then try to balance it. I think they did a big mistake, the cost of the global warming will be just massive. They have no idea how much is it going to cost. They have no idea.
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Full interview series with Didier:

– Part 1: The Discovery of the First Exoplanet Orbiting a Solar-Type Star | Didier Queloz (1/3) https://youtu.be/6xqbBWDgzsY

– Part 2: Breakthrough Discoveries vs Incremental Science | Didier Queloz (2/3) https://youtu.be/4cXalPDJT5k

– Part 3: Are we going to Alpha Centauri? | Didier Queloz (3/3) https://www.youtube.com/watch?v=RODr30duRrg

– Part 4: Why SpaceX Starlink is bad for Astronomy | Didier Queloz
https://youtu.be/dA4FUFgXtKQ

In the first video Prof. Didier Queloz discusses the impact of his 1995 discovery on the theory of planetary systems formation.

In the second video Didier talks about his challenging journey from the discovery of the first exoplanet orbiting a solar-type star in 1995 to the acknowledgement of his discovery by the scientific community. He explores his experience in reporting a paradigm-changing finding and how this triggered hard scepticism from the publishing industry and fellow scientists, which lasted about 3 years. He and Michel Mayor were eventually acknowledged as the founders of the new field of exoplanets and were awarded the Nobel Prize for Physics in 2019.

In the third video Didier talks about realistic ways to explore Proxima Centauri b and other potentially habitable planetary systems such as TRAPPIST-1 using technologies that are currently available. He also discusses his interdisciplinary research activities on abiogenesis and the search for life on other planets.

In the last video Didier talks about how astronomy is being affected and will be affected by the satellite business.
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