Australian Bureau of Meteorology

The Bureau of Meteorology is Australia’s national weather, climate and water agency. Its expertise and services assist Australians in dealing with the harsh realities of their natural environment, including drought, floods, fires, storms, tsunami and tropical cyclones. Through regular forecasts, warnings, monitoring and advice spanning the Australian region and Antarctic territory, the Bureau provides one of the most fundamental and widely used services of government.

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All the signs are pointing to a very hot year. Bernard Polet

2013 shaping up to be one of Australia’s hottest years on record

The last 10 months have been abnormally warm across Australia and we’ve seen a notable lack of unusually cold weather this winter. Are we heading for the hottest year on record? The more significant records…
It’s a good job they come with built-in jumpers. PA/Niall Carson

How cold has it really been in the northern hemisphere?

If you are one of the many people with a larger than normal heating bill for recent months, you would probably be under the impression that it has been exceptionally cold in the northern hemisphere. We’ve…
It may have been chilly locally, but how cold was it overall? Flickr/Emyan

How cold has it really been in the Northern Hemisphere?

If you’ve been following the news in Australia in recent months, you would probably be under the impression that it has been exceptionally cold in the Northern Hemisphere. We’ve seen heavy snow on multiple…
Australia’s latest summer has been significant for weather and for climate. VIBE Audio

Hot summer? Yes: the hottest

This summer hasn’t just felt hot. It’s been hot. In fact, the summer of 2012-13 is now the hottest on record. Average temperatures beat the record set in the summer of 1997-98, and daytime maximum temperatures…
Australia has always had heat waves, but the current one is far from typical. Daniel Alexander Head

What’s causing Australia’s heat wave?

Australia has started 2013 with a record-breaking heat wave that has lasted more than two weeks across many parts of the country. Temperatures have regularly gone above 48°C, with the highest recorded…
Around 90% of ozone is located in the lower stratosphere (beginning at a height of between 10-16 km above the ground). Flickr/NASA Earth Observatory

Measuring the missing molecules: a history of overseeing ozone

SAVING THE OZONE: Part eight in our series exploring the Montreal Protocol on Substances that Deplete the Ozone Layer – dubbed “the world’s most successful environmental agreement” – looks at how we measure…
Over summer, the US has been dry and hot. It’s not alone. EPA/Larry W Smith

Northern hemisphere has another hot, hot summer

The 2012 northern hemisphere summer, like its two predecessors, has seen a wide range of climate extremes, many involving heat. In most recent summers there has been at least one part of the world with…
Global land-surface temperatures are up, but it’s not really news. Stuart Dowell

On global temperatures, Berkeley’s BEST is similar to the rest

The Berkeley Earth Surface Temperature (BEST) study recently found that global land-surface temperatures have increased by about 1°C since the 1950s — and 1.5°C since the mid-18th century. These results…
We’re just coming to grips with Interdecadal Pacific Oscillation, one of the many climate modes that cause Australia’s wide and wonderful range of climate variability. mattharvey1/Flickr

Decade to decade changes in our climate – what’s really going on?

While most people now understand that the enhanced greenhouse effect means a much warmer planet, communicating regional shifts in weather remains a significant challenge. As with most complex science…
Scientists’ job is to brief us on how future climate might affect our lives, even when all the data isn’t in. Rae Allen

Droughts & flooding rains: what is due to climate change?

While most people now understand that the enhanced greenhouse effect means a much warmer planet, communicating regional shifts in weather remains a significant challenge. As with most complex science…
Rain’s coming: does that mean there’s no such thing as climate change? Georgie Sharp

A land of (more extreme) droughts and flooding rains?

While most people now understand that the enhanced greenhouse effect means a much warmer planet, communicating regional shifts in weather remains a significant challenge. As with most complex science…
Pacific Islands are looking down the barrel of serious effects from climate change. AAP

Climate change and the future of our Pacific neighbours

The vulnerability of Pacific Island countries to climate change has been the subject of significant media coverage, including Kiribati’s recent request that its people be moved to Fiji to avoid rising…
The long-term warming trend has not changed. Guillaume Brialon

State of the Climate 2012

Australia’s land and oceans have continued to warm in response to rising CO2 emissions from the burning of fossil fuels. This is the headline finding in the State of the Climate 2012, an updated summary…
A precise weather forecast, months in advance, will never be possible. Matt Smith

A chaotic beast, probably: wacky weather and climate forecasting

“Prediction is very difficult. Especially about the future” – so said Neils Bohr, the Danish physicist and 1922 Nobel Prize winner. And you know what? I think the bloke was onto something there, especially…
2011’s Cyclone Yasi was one of the strongest. dsleeter

Australia expecting an active cyclone season, but future cyclones still hard to predict

Tropical cyclones are one of the most destructive types of weather system on the planet. The obvious human interest in tropical cyclones is in their sheer power. Historically tropical cyclones have had…
CERN’s work casts light on cloud formation, but might not have much to say about climate change. Taivasalla

Do cosmic rays influence climate? Some new results from CERN

Physicists at CERN (the European Organization for Nuclear Research) created something of an online kerfuffle last month when they sought to improve our understanding of cosmic rays and clouds. While their…
The East African drought is one of the area’s worst in 60 years. AAP

From Kenya to Texas: recent climate extremes around the world

2010 was the world’s hottest year on record, with global temperatures 0.53°C above the long-term (1961-1990) average. 2011 started with a strong La Niña (perhaps the strongest since 1917), something which…
All the energy in our climate comes from the sun: it’s bound to have an influence. foxypar/Flickr

There’s always the sun: solar forcing and climate change

Climate science has now thoroughly outlined the risk associated with increasing greenhouse gases. Significant and rapid warming of the climate system is now expected to occur over the next century and…
The decade ending 2010 was the warmest on record for Australia. AAP

The greenhouse effect is real: here’s why

CLEARING UP THE CLIMATE DEBATE: Bureau of Meteorology scientist Karl Braganza explains why we know the climate is changing, and what’s causing it. In public discussions of climate change, the full range…

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