Posts by jknodlseder@astrodon.social
(DIR) Post #APCigzVXZBzZkX2pJQ by jknodlseder@astrodon.social
2022-11-02T20:05:41Z
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Another difference lies in the boundaries of the studies. Only the IRAP study was a comprehensive assessment of all sources of greenhouse gases, the other studies ignored some (important) emission sources. And for the IRAP study, use of data from astronomical observatories turned out to be the dominant source of greenhouse gas emissions.
(DIR) Post #APCigzyxnnWnDmoKAq by jknodlseder@astrodon.social
2022-11-02T20:06:48Z
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So how does astronomy compare to other research fields? This is shown in the figure below that shows estimates for the construction and operations footprints of research infrastructures in the European #ESFRI roadmap.
(DIR) Post #APCih7flD4v94Xt6Lw by jknodlseder@astrodon.social
2022-11-02T20:07:08Z
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Astronomy accounts for 24% of the construction footprint of all planned or currently developed research infrastructures, other physics infrastructures make an even larger contribution. Of course each scientific research sector relying on research infrastructures has some associated carbon footprint, yet physics (of which astronomy is part of) makes up a significant part of it.
(DIR) Post #APCihCrzt0gDBweRcW by jknodlseder@astrodon.social
2022-11-02T20:09:57Z
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Making our scientific fields sustainable hence implies a significant reduction of the carbon footprint of our research infrastructures. I will tell you in a future thread what this actually means.
(DIR) Post #APGeh2k1vBWUauQmy8 by jknodlseder@astrodon.social
2022-11-04T17:27:16Z
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@sundogplanets Nicely illustrated by the figure below from ESA's annual space environment report (LEO dominates launch traffic)
(DIR) Post #APHYujWvjwbiUzPO3U by jknodlseder@astrodon.social
2022-11-04T16:06:34Z
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Today our paper "A comprehensive assessment of the carbon footprint of an astronomical institute" has been published by @NatureAstronomy, you may access the paper at this link: https://www.nature.com/articles/s41550-022-01771-3đ§”âŹïž #Climate #CarbonFootprint #Astronomy #Astrodon #Degrowth
(DIR) Post #APHYv5UC6nUUasIVqS by jknodlseder@astrodon.social
2022-11-04T16:06:48Z
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1. By assessing the greenhouse gas emissions of the Institute for Research in Astrophysics and Planetology (IRAP), which is the largest astrophysics laboratory in France, our paper provides for the first time a comprehensive assessment of all sources of greenhouse gases that arise from astronomical activities.
(DIR) Post #AQ2ralxWQ53phbbdDs by jknodlseder@astrodon.social
2022-11-25T21:03:20Z
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Interesting article about a survey of the French research community and climate change. Guess which scientific discipline is travelling the most.https://journals.plos.org/climate/article?id=10.1371/journal.pclm.0000070#ClimateEmergency #AirTraveling #Astronomy #Astrodon
(DIR) Post #AQMASxBwMaLJM5Zdya by jknodlseder@astrodon.social
2022-12-07T06:58:32Z
2 likes, 2 repeats
Electricity imports in France this morning đł
(DIR) Post #ASPBeKlBNX710uUEtc by jknodlseder@astrodon.social
2023-02-06T06:03:39Z
1 likes, 1 repeats
It always strikes me that people think we can simply electrify everything with renewables and continue as we do. Electrifying just all US vehicles would require 3 times the current world lithium production, and thatâs just the US and the cars. More lithium would be needed for energy storage, and there are more countries than the US. Also: mining is an ecological disaster.https://subscriber.politicopro.com/article/eenews/2023/01/25/transition-to-evs-could-cause-lithium-shortages-report-00079279
(DIR) Post #ASkSt9qc8w2BBKjPE0 by jknodlseder@astrodon.social
2023-02-16T18:44:05Z
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@rahmstorf "Climate-neutral transport" is pretty much a joke. Let's talk about the embodied carbon footprint of cars and related infrastructure...
(DIR) Post #AUuCGRks3Ebu4TnN1U by jknodlseder@astrodon.social
2023-04-22T06:27:22Z
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#EarthDay is a very absurd thing: one day out of 365 where we are reminded about the importance of the system that supports us! Unless we make every day an #EarthDay we wonât be able to fix anything.
(DIR) Post #AWdS9sXWgDbgxsxUtE by jknodlseder@astrodon.social
2023-06-12T17:06:18Z
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Signatures urgently needed: taking the current development in the European parlament a scientists statement supporting the fight for biodiversity is to be handed in tomorrow: https://www.idiv.de/en/icap-bes Ask your colleagues to sign if you are from Europe.
(DIR) Post #AXVittjtYFkpqILm6K by jknodlseder@astrodon.social
2023-07-09T07:15:17Z
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@EU_Commission 10 prizes and 2 rail passes for almost 500 million citizens, thatâs a very stingy anniversary celebration #EU
(DIR) Post #AXWQDkZJeZLRDl7AIa by jknodlseder@astrodon.social
2023-07-09T15:26:08Z
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@EU_Commission Green growth is a hoax. Itâs just growth that will continue to destroy the habitability of our planet, #Europe included.
(DIR) Post #AZnqz4VHmGUEos2oNM by jknodlseder@astrodon.social
2023-09-15T21:00:37Z
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@dlr_next @dennisro @Sterbeprozess Vorher ermöglicht das Projekt vor allem unseren (d.h. globaler Norden) CO2 Ausstoss nochmal so richtig anzustossen damit es im globalen SĂŒden noch schneller den Bach runtergeht đ€ź
(DIR) Post #Aa0KMw9vWOe7jmnN8S by jknodlseder@astrodon.social
2023-09-21T21:26:37Z
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@Pr_Logos Je me suis toujours demandĂ© pourquoi les français rient Ă lâenvers đ
(DIR) Post #Ab2NeEWcZ33dTs1pwm by jknodlseder@astrodon.social
2023-10-22T17:28:01Z
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Todayâs encounter #TrainHiking #Pyrenees
(DIR) Post #Abw1TPCfl67dBQSgVs by jknodlseder@astrodon.social
2023-11-18T15:13:05Z
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Ban private jets, and in the same vein, ban private rockets đ #ClimateChange #Capitalism #SpaceX
(DIR) Post #AsAnNvZD4uuO4BIFk0 by jknodlseder@astrodon.social
2025-03-17T21:45:31Z
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Câest fatiguant dâĂȘtre gouvernĂ© par des cons đ€Ż Ă Toulouse, tout ce que lâon aura Ă©conomisĂ© en gaz Ă effet de serre en prenant les transports en commun on va le cramer en payant avec la cryptomonnaie. #ImbecilesSpheriqueshttps://actu.fr/occitanie/toulouse_31555/toulouse-dans-les-transports-en-commun-de-tisseo-on-peut-desormais-payer-en-cryptomonnaie-comment-ca-marche_62373525.html