A global study of 1,400 cities reveals where warming is fastest, why hot nights are increasing and how climate change is driving heat exposure.

Satellite data suggests cities receive rain more often than nearby rural areas, but improved satellite coverage has inflated some long-term trends.

Where El Niño or La Niña forms in the Pacific is crucial to Australian impacts When it comes to rainfall impacts on Australia, not all El Niño events affect us in the same way. Some leave large parts ...

Hail conditions on the move as winter crops face rising risk New research led by UNSW suggests that as the climate warms, the conditions that produce hailstorms are drifting towards the poles, leaving...

New research using a rotating water tank experiment shows polar changes may mean fewer short storms but longer-lasting extremes of weather and climate.

From ship logs to tree rings, researchers reveal how ENSO shaped climate for centuries, and why today’s planning assumptions may be flawed.

New research shows land clearing and rapid development can sharply worsen heatwaves beyond global warming, with direct implications for heat in Australia.

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.

New research reveals ocean fronts account for 72% of the ocean's total carbon dioxide uptake, reshaping how scientists understand climate regulation.

Monash University research shows calm doldrum weather and failing trade winds are key drivers of mass coral bleaching on the Great Barrier Reef.

Explore what happens beyond net zero emissions, why climate impacts continue, and how early action reduces long-term risks for communities and ecosystems.

New research shows every five-year delay to net zero fuels hotter, longer, and more frequent heatwaves for centuries, especially in vulnerable regions

The 2025 State of the Climate Report reveals Earth’s hottest year in 125,000 years, with 22 of 35 vital signs at critical levels.

New research reveals worsening impacts of droughts across Australia’s key regions, threatening food security, water supply, and economic resilience.

21st Century Weather’s Negin Nazarian honoured with AGU’s 2025 Global Environmental Change Early Career Award for her urban climate research.

YouTube video by 21st Century Weather

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New research shows climate change and air pollution have reduced rainfall in the US Southwest, locking in drought even under El Niño-like conditions.

Even after net zero, climate change continues. Sea levels rise, oceans warm, and risks remain. Adaptation and clear communication are essential.

NASA-led study shows Earth’s cloud cover is shrinking, amplifying warming. Fewer clouds mean more heat absorbed and record temperatures worldwide.

Discover Dark Oceanography, a new performance merging ocean climate data and sound. Premiere 27 July, with a public salon event on 21 July at Monash.

How climate change and moisture thresholds shape the future of atmospheric rivers and rainfall in Australia. New research from Dr Kim Reid.

A global dialogue on climate change and human rights.

Scientists are working to understand a risk to Antarctica, after finding climate change could alter the ocean current protecting the frozen continent

When it comes to rainfall, not all places in the tropics are equal, and one reason for this is the distribution of water vapour across the globe.

Melissa Hart and her collaborators have received AU$4.2 million in Wellcome Trust grant funding to research the heat health burden on First Nations communities.

21st Century Weather is recruiting postdoctoral researchers in climate modelling and weather change research.

Researchers at UNSW have developed a model to predict urban wind flow with precision, using handheld devices.

A significant outcome of the UN COP meetings has been the creation of a new fund to support countries dealing with the Loss & Damage caused by climate change.

21st Century Weather is recruiting postdoctoral researchers in climate modelling and weather change research.

21st Century Weather is recruiting postdoctoral researchers in climate modelling and weather change research.

In this special blog, learn about 21st Century Weather Chief Investigator Negin Nazarian's inspiring voyage to Antarctica as part the Homeward Bound program.

We research how Australia’s weather is being reshaped by climate change

We research how Australia’s weather is being reshaped by climate change

Much of the country is sweltering under extreme heat that was very well forecast. But seemingly minor factors can make a big difference to what happens on the day.

We research how Australia’s weather is being reshaped by climate change

We research how Australia’s weather is being reshaped by climate change

Understanding the impacts of climate change on Victoria

We research how Australia’s weather is being reshaped by climate change