What's it take to gather together all of the world’s most important climate science in one report? Passion, years of coordination, and a good alarm clock. Join PhD student Wil Laura on his journey as a Chapter Scientist for the Seventh Assessment Report of the IPCC. Starting in Santiago, Chile!

New research led by Tim Raupach and Steven Sherwood and published in Nature Climate Change suggests the atmospheric conditions that favour hail formation are shifting towards cooler regions and cooler times of the year. For more: 21centuryweather.org.au/hail-conditi...

Help shape the future of 21st Century Weather, and you could win limited edition Centre of Excellence-branded merchandise! We’re reviewing how we communicate, and we want to hear from you. What’s working? What could we do better? Take our quick survey and let us know: lnkd.in/gJZ2MfAe

Kial Stewart (from ANU) and his collaborators learned that we could see fewer short-term, small-scale storms, but potentially more prolonged and persistent extreme events, such as heat waves or cold spells, as the climate changes. - www.21centuryweather.org.au/changes-to-t...

New research led by 21st Century Weather's Senior Research Fellow Dr Mandy Freund shows that modern temperature and rainfall records capture only a small slice of ENSO’s long and complex history. Revealing centuries of behaviour before modern observations. - 21centuryweather.org.au/reconstructi...

New research shows that in some African regions, heatwaves could become 12 times longer by the end of the century if high emission rates and land degradation continue. Amazing work led by 21st Century Weather Research Fellow Oluwafemi ADEYERI of ANU: www.21centuryweather.org.au/deforestatio...

Human-induced climate change made the intense early January heatwave in Australia five times more likely, according to a new analysis by World Weather Attribution. Australians can now expect to experience similar heatwaves about once every five years. - www.21centuryweather.org.au/climate-chan...

New research published in Nature Climate Change shows that narrow fronts - covering just 36% of the global ocean - are responsible for 72% of the sea's carbon dioxide uptake, absorbing around 1.8 billion tonnes of carbon each year. For more on this work: www.21centuryweather.org.au/ocean-fronts...

Lead researcher and PhD candidate Lara Richards of Monash University explains new research that has identified calm 'doldrum' weather, and the absence of cooling trade winds, as a key driver of coral bleaching on the Great Barrier Reef. Read more here: 21centuryweather.org.au/doldrum-days...

What happens to our climate after we reach net zero? The scale of impacts will depend strongly on how quickly we cut emissions today, and take action to halt emissions. To learn more, check out this new Topic Brief in full: 21centuryweather.org.au/engage/topic...

Modelling shows record-breaking heatwaves are locked in for 1,000 years, even under net zero pathways. Every five-year delay in reaching net zero makes heatwaves hotter, longer and more frequent, with no return to pre-industrial conditions for centuries. - 21centuryweather.org.au/deadly-recor...

The 2025 State of the Climate Report has been released, indicating that 22 of the Earth’s 35 vital signs are being pushed to critical levels, as the planet reaches its hottest temperature in the last 125,000 years. Led by Oregon State University, read more: 21centuryweather.org.au/the-earth-is...

Australia’s droughts are changing, and so are their impacts, writes UNSW PhD student Matt Grant. A new study, titled 'Historical trends of seasonal droughts in Australia', reveals how drought patterns have shifted over the past century. Read more here: www.21centuryweather.org.au/droughts-are...

A huge congratulations to 21st Century Weather Deputy Director @neginnazarian.bsky.social for receiving the 2025 Global Environmental Change Early Career Award from @agu.org! Read more here: 21centuryweather.org.au/negin-nazari...

Sarah and Iain Strachan sit down with three emerging researchers: Bethan White, Rachael Isphording, and Wil Laura! Talking about the motivations that drew them into climate science, from childhood experiences of hurricanes in Alabama to growing up in Peru: Live now: www.youtube.com/watch?v=5FWN...

We are hosting a Masterclass for our partners and stakeholders from government and industry! Deepening your knowledge and understanding of weather and climate science! 🎓 📌 UNSW Law Theatre, Sydney ⏱️ Tue 2 Sep: 9:30am-5pm 💵 Free to attend Register here: lnkd.in/gCUMhpuv Agenda here: lnkd.in/gHdZHMj8

A special ep of Totally Cooked is brewing, tackling common misconceptions about all things weather and climate. Please post any ideas you'd like to see cooked (can be anon too) below. Eg. “El Nino always means dry weather or drought in Australia, and La Nina always mean wet weather or flood.”

Climate change is making drought inevitable in the US Southwest. A new study shows that even El Niño-like conditions can’t overcome the drying effect of global warming and air pollution. - 21centuryweather.org.au/climate-chan... #ClimateScience #Drought #ElNino #USSouthwest #ClimateChange

Reaching net zero is not the end of climate change, and we need to start communicating that more clearly. A new paper led by Andrew King and featuring Sarah Perkins-Kirkpatrick calls for a shift in how we talk about climate futures. Have a read now: 21centuryweather.org.au/beyond-net-z...

Earth is losing clouds — fast. Storm zones have shrunk by up to 3% per decade. That’s helping drive record-breaking heat. New NASA-led research featuring @Weather21C shows how less cloud = more warming. Read more: 21centuryweather.org.au/new-study-sh... #ClimateScience #GlobalWarming #CloudCover

New Australian @amosupdates.bsky.social President Sarah Perkins-Kirkpatrick is showing her stripes in distinguished company. Thanks to The Hon. Matt Kean, Chair of the Climate Change Authority, Australia's Chief Scientist Tony Haymet PhD, and Great Barrier Reef expert Ove Hoegh-Guldberg.

What does ocean climate data sound like? Dark Oceanography is a new music performance that turns swirling ocean eddies into sound, using climate model data and spatial audio. Salon discussion Monday 21 July. Premieres Sunday 27 July at Monash. For more: www.21centuryweather.org.au/dark-oceanog...

As the climate warms, the atmosphere holds more moisture, but what does that mean for extreme rain and atmospheric rivers? @drkimclimate.bsky.social, Research Fellow at 21st Century Weather and the University of Melbourne, breaks it down in a new study: www.21centuryweather.org.au/future-rainf...

Coming soon: Totally Cooked – The Climate & Weather Podcast! Science, weather, dark humour. No jargon, no sugar-coating. Hosted by @sarahinscience.bsky.social & @instrachan.bsky.social. First three episodes drop Friday 20 June. Follow us here: www.21centuryweather.org.au/engage/total...

Our Chief Investigator Nicola Maher is examining how Australia’s role in driving climate change is linked to real and measurable human harms. 📅 Wednesday 5 June 🕐 12:15–1:00pm AEST 📍 In person at UNSW Kensington or online via the global livestream. Register: www.events.unsw.edu.au/event/right-...

Scientists are working to better understand a risk to Antarctica’s future. New research in Geophysical Research Letters predicts the melting of Antarctic ice will alter the Antarctic Slope Current, estimating it will be around 50 per cent faster by 2050. - 21centuryweather.org.au/an-uncertain...

1 week wrapped at the WCRP Global KM-Scale Hackathon 2025! 650+ people, 10+ global nodes, working on the cutting edge of climate science and modelling. We hosted the Aus node in partnership with NCI and ACCESS-NRI, covering 10 projects. This is just the start... 🌐💡 #WCRPHackathon #ClimateScience

The tropics may be hot and rainy, but not all tropical places feel the same. The secret lies in how water vapor (humidity) is spread around the globe, writes Monash University PhD student Corey Robinson. Have a read - 21centuryweather.org.au/understandin...

Congratulations to our Associate Director @melissatraveler.bsky.social and collaborators who have received AU$4.2 million in Wellcome Trust grant funding to research heat health burden on First Nations communities in under-resourced remote Australia! - www.21centuryweather.org.au/melissa-hart...

Job opportunity: Lecturer or Senior Lecturer based at Monash University. Do you have expertise in one or more areas, including atmospheric dynamics, physical meteorology, atmospheric modelling, and similar disciplines? Apply now. Closes on Friday 2 May. - 21centuryweather.org.au/about-us/pos...

Imagine predicting the wind flow around you with precision – using an accessible, lightweight, no 'advance expertise' needed model anyone could run? Research undertaken at UNSW, led by Jiachen Lu and @neginnazarian.bsky.social, has worked at just that. - 21centuryweather.org.au/how-machine-...

Impact attribution can help us to look beyond local extreme events to their global consequences when fairly calculating Loss & Damage. Led by Camille Mora, this interdisciplinary study features some of our wonderful chief investigators. - www.21centuryweather.org.au/local-extrem...

We are recruiting for a Research Fellow based at Monash University! Working with @ailiegallant.bsky.social on weather resources critical for renewable energy and agriculture, and an opportunity to work with the Bureau of Meteorology. Closes April 24 - www.21centuryweather.org.au/about-us/pos...

We are recruiting for a Research Fellow based at The Australian National University! Undertaking research to investigate small scale atmospheric and oceanic processes and their role in setting the mean state. Applications close on Sunday 20 April. - www.21centuryweather.org.au/about-us/pos...

In this special blog post, read about 21st Century Weather Chief Investigator Negin Nazarian’s inspiring voyage to Antarctica as part the Homeward Bound program! - www.21centuryweather.org.au/negin-nazari...

Why was 2022 in Australia so wet, and will it happen again? @drkimclimate.bsky.social led a major study looking deeper into the reasons behind the devastating 2022 floods, and highlights our needs to better predict heavy rainfall in the future. 21centuryweather.org.au/why-was-2022...

Job opportunity: Research Fellow in Mesoscale Storms and Climate - Melbourne Uni. Investigating mesoscale storms over Australia and nearby oceans using observation and climate models to understand future changes in storm organisation and characteristics. www.21centuryweather.org.au/about-us/pos...

20 years ago, predicting this week’s very hot weather in southeast Australia with precision was unthinkable... Writing in the @theconversation.com, @ailiegallant.bsky.social & @weathermanbarnes.bsky.social explain how forecasting is useful and trustworthy. theconversation.com/australias-l...

Can we give a BIG congratulations to our Chief Investigator, Associate Professor @ailiegallant.bsky.social of Monash University, who has just been elected a Fellow of the Australian Meteorological and Oceanographic Society! @amosupdates.bsky.social 🎊 - www.21centuryweather.org.au/ailie-gallan...

A big congratulations to @drkimclimate.bsky.social and Helen Cleugh, who received the Morton Medal and Science Outreach Award from the Australian Meteorological and Oceanographic Society (@amosupdates.bsky.social) for 2024! Amazing work! - www.21centuryweather.org.au/helen-cleugh...

For our last Changing Climate article of the year we had a chat with @sarahinscience.bsky.social about what climate change means for the future of extreme weather events You can read the article here 👉​ www.monash.edu/mcccrh/proje...

Low-level humidity has been a feature of the weather over the east for the past week. With Melbourne experiencing a spell of 100% humidity early last week! A breakdown of Olympic Park as we entered Summer from @weathermanbarnes.bsky.social

Victoria’s Climate Science Report for 2024 just dropped! The Victorian Government have Incorporated the latest climate projections, and the science of climate hazards relevant to Victoria, to help make decisions for a more resilient future: www.climatechange.vic.gov.au/victorias-ch...

We support the recommendations made in A Decadal Plan for Australian Earth System Science 24-33. This calls for urgent establishment of a national institute responsible for coordinating science required to transform Australia’s climate change response. - www.21centuryweather.org.au/a-decadal-pl...

Check out this nighttime microphysical image showing the foggy Monday morning with 250 metre visibility for Melburnians this week. Fog shown as bright blue-green colours. Most of Melbourne covered by higher-level cloud, while low cloud is seen in other parts of Aus. - @weathermanbarnes.bsky.social