Tim Raupach
@timraupach.com
Scientia Senior Lecturer at UNSW Sydney Institute for Climate Risk and Response. I study severe storms, especially hail, in a changing climate ⛈️. I also take photos and climb mountains. These views are my own. https://timraupach.com
Scientists around the world use science and models developed at @ncar-ucar.bsky.social to understand the climate, forecast the weather, and protect people from climate/weather extremes. A lot of people are safer because of NCAR. It would be a tragedy for it to be gone. www.nature.com/articles/d41...
Trump team plans to break up ‘global mothership’ of climate science
Much of the National Center for Atmospheric Research’s non-climate portfolio will be dispersed, the White House says.
www.nature.com
December 17, 2025 at 11:59 PM
Scientists around the world use science and models developed at @ncar-ucar.bsky.social to understand the climate, forecast the weather, and protect people from climate/weather extremes. A lot of people are safer because of NCAR. It would be a tragedy for it to be gone. www.nature.com/articles/d41...
Reposted by Tim Raupach
Excellent context on why we need more supercomputing to keep Australia at the forefront of climate research. Current funding is slipping in real terms, meaning the science is slipping and slowing too.
Thanks Christian Jakob and @21stcenturyweather.bsky.social
theconversation.com/australias-s...
Thanks Christian Jakob and @21stcenturyweather.bsky.social
theconversation.com/australias-s...
Australia’s supercomputers are falling behind – and it’s hurting our ability to adapt to climate change
When the Gadi supercomputer opened in 2020, it was ranked 24th in the world. It’s now dropped to 179th.
theconversation.com
December 10, 2025 at 11:19 PM
Excellent context on why we need more supercomputing to keep Australia at the forefront of climate research. Current funding is slipping in real terms, meaning the science is slipping and slowing too.
Thanks Christian Jakob and @21stcenturyweather.bsky.social
theconversation.com/australias-s...
Thanks Christian Jakob and @21stcenturyweather.bsky.social
theconversation.com/australias-s...
Something I've been thinking about recently is how well ChatGPT understandings tone in writing, and how weird it is that we're using machines to predict how other humans will react to what we write. Does it do it better or is it just easier than asking a real person to be a sounding board?
December 10, 2025 at 12:43 AM
Something I've been thinking about recently is how well ChatGPT understandings tone in writing, and how weird it is that we're using machines to predict how other humans will react to what we write. Does it do it better or is it just easier than asking a real person to be a sounding board?
David Byrne (and a big band) plays a Tiny Desk Concert. What a joy! www.youtube.com/watch?v=PNmc...
David Byrne: Tiny Desk Concert
YouTube video by NPR Music
www.youtube.com
December 6, 2025 at 1:11 PM
David Byrne (and a big band) plays a Tiny Desk Concert. What a joy! www.youtube.com/watch?v=PNmc...
Want to make this about affordability? Instead of talking about miles per gallon, start talking about miles per dollar. www.nytimes.com/2025/12/03/c...
Trump Returns to Gasoline as Fuel of Choice for Cars, Gutting Biden’s Climate Policy
www.nytimes.com
December 3, 2025 at 10:15 PM
Want to make this about affordability? Instead of talking about miles per gallon, start talking about miles per dollar. www.nytimes.com/2025/12/03/c...
How should decision-makers address extreme weather hazards when considering complex climate risks? At #EGU26, Ben Newell, @vitusbenson.bsky.social, @janasillmann.bsky.social and I are convening a session on interdisciplinary approaches. Abstract deadline 15 Jan! www.egu26.eu/session/57683
December 1, 2025 at 3:42 AM
How should decision-makers address extreme weather hazards when considering complex climate risks? At #EGU26, Ben Newell, @vitusbenson.bsky.social, @janasillmann.bsky.social and I are convening a session on interdisciplinary approaches. Abstract deadline 15 Jan! www.egu26.eu/session/57683
Queensland’s had a rough run of storms with giant hail recently - I talked with ABC news about them. www.abc.net.au/news/2025-11...
'Unusually active': Ten giant hail warnings for SEQ this storm season
The region has been hit by another round of storms which brought large and even giant hailstones. Is this the new normal?
www.abc.net.au
November 25, 2025 at 9:54 PM
Queensland’s had a rough run of storms with giant hail recently - I talked with ABC news about them. www.abc.net.au/news/2025-11...
More big hail across SE Queensland yesterday, with hailstones up to 14 cm. www.abc.net.au/news/2025-11...
90,000 households still without power after giant hail and fierce winds
About 90,000 households remain without power after giant hailstones, destructive winds and intense lightning lashed south-east Queensland, with more extreme weather on the way.
www.abc.net.au
November 24, 2025 at 10:31 PM
More big hail across SE Queensland yesterday, with hailstones up to 14 cm. www.abc.net.au/news/2025-11...
We’re coming to the end of a big week
of storm science as #ECSS2025 wraps up. Here Boris Blanc presents his work on interannual variability in hailstorms in Australian cities. Boris is doing a PhD with me at UNSW. An impressive audience present for the last session!
of storm science as #ECSS2025 wraps up. Here Boris Blanc presents his work on interannual variability in hailstorms in Australian cities. Boris is doing a PhD with me at UNSW. An impressive audience present for the last session!
November 21, 2025 at 11:26 AM
We’re coming to the end of a big week
of storm science as #ECSS2025 wraps up. Here Boris Blanc presents his work on interannual variability in hailstorms in Australian cities. Boris is doing a PhD with me at UNSW. An impressive audience present for the last session!
of storm science as #ECSS2025 wraps up. Here Boris Blanc presents his work on interannual variability in hailstorms in Australian cities. Boris is doing a PhD with me at UNSW. An impressive audience present for the last session!
Australia will walk away from hosting #COP31 in a compromise in which Australia takes the presidency role and the Pacific hosts a pre-COP event. @wesmorgan.bsky.social explains what happened, the broader context, and what comes next. This is an important read. theconversation.com/australia-ha...
Australia has dropped its bid to host the COP31 climate talks. Here’s what happened – and what’s next
After a three-year push to host the 2026 climate talks with the Pacific, Australia has backed down. The news is disappointing – but there’s a small silver lining.
theconversation.com
November 20, 2025 at 5:21 PM
Australia will walk away from hosting #COP31 in a compromise in which Australia takes the presidency role and the Pacific hosts a pre-COP event. @wesmorgan.bsky.social explains what happened, the broader context, and what comes next. This is an important read. theconversation.com/australia-ha...
Had a great poster session at #ECSS2025 with plenty of fruitful discussions. Tanya Patel, who I’m supervising for a PhD, presented her work on land-ocean lightning contrast in the Australian tropics. I showed downscaling-based hail size projections for Australian cities.
November 18, 2025 at 4:08 PM
Had a great poster session at #ECSS2025 with plenty of fruitful discussions. Tanya Patel, who I’m supervising for a PhD, presented her work on land-ocean lightning contrast in the Australian tropics. I showed downscaling-based hail size projections for Australian cities.
I’m very happy to be in Utrecht, The Netherlands, for the 12th European Conference on Severe Storms #ECSS2025 run by @essl-ecss.bsky.social and supported by @knmi.nl and @eumetsat.int. Here, @pietergroenemeijer.bsky.social opens the conference. Lots of exciting science to discuss this week!
November 17, 2025 at 8:36 AM
I’m very happy to be in Utrecht, The Netherlands, for the 12th European Conference on Severe Storms #ECSS2025 run by @essl-ecss.bsky.social and supported by @knmi.nl and @eumetsat.int. Here, @pietergroenemeijer.bsky.social opens the conference. Lots of exciting science to discuss this week!
Storm development over Sydney yesterday
November 8, 2025 at 10:31 PM
Storm development over Sydney yesterday
Some footage from the recent hailstorms in southern Queensland, and the cleanup after. www.youtube.com/watch?v=xrPR...
Giant sized hail damages homes, cars, properties as southern Queensland faces more storms | ABC News
YouTube video by ABC News (Australia)
www.youtube.com
November 3, 2025 at 10:29 PM
Some footage from the recent hailstorms in southern Queensland, and the cleanup after. www.youtube.com/watch?v=xrPR...
Nasty damage from hail in SE Queensland yesterday. People were injured, and the hail smashed solar panels, windows, cars etc. Some people remain without power. www.abc.net.au/news/2025-11...
'We're still reeling': Hundreds remain without power as hailstorm damage counted
Queensland residents are counting the cost of giant hailstones that fell on Saturday afternoon, damaging cars, homes and gardens.
www.abc.net.au
November 2, 2025 at 6:54 AM
Nasty damage from hail in SE Queensland yesterday. People were injured, and the hail smashed solar panels, windows, cars etc. Some people remain without power. www.abc.net.au/news/2025-11...
Didn't expect this error but to be honest it seems fair enough...
October 20, 2025 at 11:50 PM
Didn't expect this error but to be honest it seems fair enough...
I'm increasingly tired of seeing ChatGPT writing style everywhere. It sticks out, especially high en-dash usage, poor similes, and supposed-to-be-clever "that's not just A, it's B" statements. Wikipedia has a nice list of AI "tells": en.wikipedia.org/wiki/Wikiped...
Wikipedia:Signs of AI writing - Wikipedia
en.wikipedia.org
October 19, 2025 at 11:40 PM
I'm increasingly tired of seeing ChatGPT writing style everywhere. It sticks out, especially high en-dash usage, poor similes, and supposed-to-be-clever "that's not just A, it's B" statements. Wikipedia has a nice list of AI "tells": en.wikipedia.org/wiki/Wikiped...
Reposted by Tim Raupach
For so long, fossil fuel projects have said their contribution to climate change is "negligible".
Turns out that's wrong.
Our research in NPJ Climate Action proves it.
Every tonne of CO2 matters.
@21stcenturyweather.bsky.social
@minderoo.bsky.social
#climatechange
www.nature.com/articles/s44...
Turns out that's wrong.
Our research in NPJ Climate Action proves it.
Every tonne of CO2 matters.
@21stcenturyweather.bsky.social
@minderoo.bsky.social
#climatechange
www.nature.com/articles/s44...
Quantifying the regional to global climate impacts of individual fossil fuel projects to inform decision-making - npj Climate Action
npj Climate Action - Quantifying the regional to global climate impacts of individual fossil fuel projects to inform decision-making
www.nature.com
October 13, 2025 at 10:07 AM
For so long, fossil fuel projects have said their contribution to climate change is "negligible".
Turns out that's wrong.
Our research in NPJ Climate Action proves it.
Every tonne of CO2 matters.
@21stcenturyweather.bsky.social
@minderoo.bsky.social
#climatechange
www.nature.com/articles/s44...
Turns out that's wrong.
Our research in NPJ Climate Action proves it.
Every tonne of CO2 matters.
@21stcenturyweather.bsky.social
@minderoo.bsky.social
#climatechange
www.nature.com/articles/s44...
Okay, but the ice still played rather a major role, no? www.nytimes.com/2025/10/06/s...
Wreck of Shackleton’s Endurance Tied to Culprit Other Than Ice
www.nytimes.com
October 7, 2025 at 9:51 PM
Okay, but the ice still played rather a major role, no? www.nytimes.com/2025/10/06/s...
This feels like the right music to be listening to while working on climate projections of hail risk to crops...
September 24, 2025 at 11:35 PM
This feels like the right music to be listening to while working on climate projections of hail risk to crops...
Great new research from Killian Brennan and Lena Wilhelm shows that hailstorms in Europe are influenced by dust from the Sahara. Crucial to gain this kind of microphysical understanding for hailstorms. acp.copernicus.org/articles/25/...
Saharan dust linked to European hail events
Abstract. Saharan dust significantly influences hail occurrence in Europe. Using Copernicus Atmosphere Monitoring Service (CAMS) and reanalysis data, crowd-sourced hail reports, lightning data, and ra...
acp.copernicus.org
September 24, 2025 at 12:13 AM
Great new research from Killian Brennan and Lena Wilhelm shows that hailstorms in Europe are influenced by dust from the Sahara. Crucial to gain this kind of microphysical understanding for hailstorms. acp.copernicus.org/articles/25/...
The Australian Climate Service's National Climate Risk Assessment is an excellent document - it gives a comprehensive and robust assessment of the state of knowledge on climate risks now and for the future. It makes for sobering reading. 1/4
www.acs.gov.au/pages/nation...
www.acs.gov.au/pages/nation...
National Climate Risk Assessment
Learn about Australia's first National Climate Risk Assessment.
www.acs.gov.au
September 16, 2025 at 1:20 AM
The Australian Climate Service's National Climate Risk Assessment is an excellent document - it gives a comprehensive and robust assessment of the state of knowledge on climate risks now and for the future. It makes for sobering reading. 1/4
www.acs.gov.au/pages/nation...
www.acs.gov.au/pages/nation...
Reposted by Tim Raupach
On one hand, reducing car use reduces urban pollution.
But on the other, everyone likes it and cities become more livable
But on the other, everyone likes it and cities become more livable
August 30, 2025 at 12:43 AM
On one hand, reducing car use reduces urban pollution.
But on the other, everyone likes it and cities become more livable
But on the other, everyone likes it and cities become more livable
The @ametsoc.org has released a statement on the deeply flawed DoE 2025 Climate Synthesis report. It reaffirms that the modern climate is changing primarily because of human influence; this is harmful; scientists agree; and response options are available. Read here: www.ametsoc.org/ams/about-am...
The Practice and Assessment of Science: Five Foundational Flaws in the Department of Energy's 2025 Climate Report
Adopted by the Executive Committee of the AMS Council on 27 August 2025
www.ametsoc.org
August 28, 2025 at 11:25 PM
The @ametsoc.org has released a statement on the deeply flawed DoE 2025 Climate Synthesis report. It reaffirms that the modern climate is changing primarily because of human influence; this is harmful; scientists agree; and response options are available. Read here: www.ametsoc.org/ams/about-am...
Shocked to discover that Excel can't open two independent documents that have the same filename. In 2025.
August 27, 2025 at 6:23 AM
Shocked to discover that Excel can't open two independent documents that have the same filename. In 2025.