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
Frontiers ebook "Concept Papers from the World Climate Research Programme: The Future of Climate Research". A collection of forward-looking papers on a variety of climate topics, including our article, led by @janasillmann.bsky.social, on climate extremes & risks.
www.frontiersin.org/research-top...
www.frontiersin.org/research-top...
Concept Papers from the World Climate Research Programme: The Future of Climate Research
This collection of journal articles reflects the diverse and comprehensive landscape of contemporary climate science and looks into the future of the subject. Ranging from the historical foundations t...
www.frontiersin.org
February 4, 2026 at 10:48 PM
Frontiers ebook "Concept Papers from the World Climate Research Programme: The Future of Climate Research". A collection of forward-looking papers on a variety of climate topics, including our article, led by @janasillmann.bsky.social, on climate extremes & risks.
www.frontiersin.org/research-top...
www.frontiersin.org/research-top...
It's been a hot January in Australia. A fast attribution study shows that heatwaves like that of 5-10 January have been made 5x more likely by anthropogenic climate change. A "total transformation of the Australian summer" says @sarahinscience.bsky.social www.21centuryweather.org.au/climate-chan...
Climate change made January heatwave five times more likely
New analysis finds climate change made Australia’s heatwave five times more likely, added 1.6°C, and could make events biennial without rapid emissions cuts.
www.21centuryweather.org.au
February 2, 2026 at 1:21 AM
It's been a hot January in Australia. A fast attribution study shows that heatwaves like that of 5-10 January have been made 5x more likely by anthropogenic climate change. A "total transformation of the Australian summer" says @sarahinscience.bsky.social www.21centuryweather.org.au/climate-chan...
UNSW ICRR's @wesmorgan.bsky.social provides this useful summary of where the world stands in the phase out of fossil fuels. Renewable power overtook coal power globally last year. The transition to electric options has momentum, despite US resistance. theconversation.com/fossil-fuels...
Fossil fuels are doomed – and Trump can’t save them
Yes, climate change is worsening and action is uneven. But the shift away from fossil fuels is beginning.
theconversation.com
January 29, 2026 at 12:38 AM
UNSW ICRR's @wesmorgan.bsky.social provides this useful summary of where the world stands in the phase out of fossil fuels. Renewable power overtook coal power globally last year. The transition to electric options has momentum, despite US resistance. theconversation.com/fossil-fuels...
Reposted by Tim Raupach
Is damaging hail getting worse? An ESSL-led study published in Nature Geoscience finds that very large hail is modelled to occur most frequently in South America, the United States, and South Africa, but Europe shows the strongest increase in very large hail frequency. doi.org/10.1038/s415...
January 12, 2026 at 1:30 PM
Is damaging hail getting worse? An ESSL-led study published in Nature Geoscience finds that very large hail is modelled to occur most frequently in South America, the United States, and South Africa, but Europe shows the strongest increase in very large hail frequency. doi.org/10.1038/s415...
Final call! Abstract submissions for #EGU26 close on 15 January at 13h CET. Our interdisciplinary session on complex climate risks is looking for contributions on physical climate science and decision making, storyline approaches, impact-based forecasting, and more! www.egu26.eu/session/57683
January 12, 2026 at 10:45 PM
Final call! Abstract submissions for #EGU26 close on 15 January at 13h CET. Our interdisciplinary session on complex climate risks is looking for contributions on physical climate science and decision making, storyline approaches, impact-based forecasting, and more! www.egu26.eu/session/57683
Reposted by Tim Raupach
As a climate scientist, I know heatwaves in Australia will only get worse. We need to start preparing now | Sarah Perkins-Kirkpatrick #Climate
As a climate scientist, I know heatwaves in Australia will only get worse. We need to start preparing now | Sarah Perkins-Kirkpatrick
During black summer, my daughters were too young to know what was happening. Now, amid another Australian heatwave, they deserve answers
www.theguardian.com
January 8, 2026 at 9:59 PM
As a climate scientist, I know heatwaves in Australia will only get worse. We need to start preparing now | Sarah Perkins-Kirkpatrick #Climate
If you're wondering what is causing the extreme heat over SE Australia at the moment, don't miss @weathermanbarnes.bsky.social's excellent explainer on substack. weathermanbarnes.substack.com/p/is-blockin...
Is "blocking" causing the incoming heatwave in Australia?
Australia is set to scorch this week, with the majority of southern Australia under heatwave conditions.
weathermanbarnes.substack.com
January 8, 2026 at 11:39 PM
If you're wondering what is causing the extreme heat over SE Australia at the moment, don't miss @weathermanbarnes.bsky.social's excellent explainer on substack. weathermanbarnes.substack.com/p/is-blockin...
Trump will pull the US from the UNFCCC and IPCC, amongst many other important treaties. Hopefully, like with the Paris agreement, no other countries will follow suit. www.nytimes.com/2026/01/07/c...
Trump Pulls Out of Global Climate Treaty
www.nytimes.com
January 8, 2026 at 1:00 AM
Trump will pull the US from the UNFCCC and IPCC, amongst many other important treaties. Hopefully, like with the Paris agreement, no other countries will follow suit. www.nytimes.com/2026/01/07/c...
If you're in the business of doing inter-disciplinary climate work related to extreme weather, and especially if you're looking at bridging the gap between science and decision making, please don't forget to submit your abstract to our #EGU26 session! Details below, deadline is 15 January.
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
January 5, 2026 at 11:37 PM
If you're in the business of doing inter-disciplinary climate work related to extreme weather, and especially if you're looking at bridging the gap between science and decision making, please don't forget to submit your abstract to our #EGU26 session! Details below, deadline is 15 January.
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...