Old weather diaries are becoming important in climate research.
Linden Ashcroft/State Library of New South Wales
High-quality climate records only go back to the start of the 20th century. But using handwritten letters, journals and tables, researchers have access to data going back to the 18th century.
Cape Grim, on the northwest tip of Tasmania, is exposed to some of the cleanest air in the world.
CSIRO/Bureau of Meteorology
Cape Grim's air pollution station has recorded some of the biggest changes to the world's atmosphere over the past 40 years.
A large thunderstorm rolls over Sydney in 2015.
AAP Image/Newzulu/Haig Gilchrist
Severe storms bring a complex mixture of weather conditions, often in a very localised area. This unpredictability can make them very damaging, and very hard to study too.
Australia’s oceans are heating up.
The new State of the Climate report outlines Australia's rising temperatures and its regional rainfall declines - and the trends that are locked in for the coming few decades due to greenhouse emissions.
Tropical Cyclone Carlos approaches Western Australia in February 2011.
NASA Goddard Space Flight Center/Flickr
Australia is facing an above-average cyclone season, with at least 11 cyclones likely in the region.
China may be undertaking more cyber attacks than the Australian government has admitted.
It's no surprise that China represents a cyber threat to Australia. But the government has been reluctant to state this fact and needs to respond more decisively.
Galileo was right, but that doesn’t mean his fans are.
Justus Sustermans/Wikimedia Commons
One Nation Senator-elect Malcolm Roberts lauds Galileo as a hero who turned scientific consensus on its head. But the 'Galileo gambit' is just one weapon in the climate conspiracists' arsenal.
A satellite image of the 2004 boxing day tsunami striking the southwestern coast of Sri Lanka. Could a similar tsunami hit Australia?
Australia is surrounded by ocean, so is not immune to the effects of tsunamis. But how significant is the risk?
Tasmania’s Cape Grim monitoring station passed a crucial carbon dioxide threshold this month.
Bureau of Meteorology
Atmospheric carbon dioxide measurements at Tasmania's Cape Grim and Antarctica's Casy Station have now officially passed 400 parts per million and are likely to stay above that for decades to come.
CSIRO chief executive Larry Marshall fronts senate estimates in February.
AAP Image/Mick Tsikas
A proposal for the Bureau of Meteorology to take on CSIRO climate scientists is a good idea - but CSIRO needs to make sure nothing is lost.
Spencer Gulf at sunset in South Australia.
Australian Bureau of Meteorology
The summer of 2015-2016 was the hottest on record for Australia's oceans.
Nice day for the beach. In fact there have been rather a lot of those in Sydney lately.
Natalia Montes de Oca/Wikimedia Commons
Sydney is in the process of smashing the record for the longest run of days above 26℃. Weather, El Nino and climate change are all playing their part.
CSIRO’s decision a decade ago to merge its marine and atmospheric research set the stage for a national climate research plan.
CSIRO was instrumental in creating a unified plan for all of Australia's climate research. The latest round of cuts would see that collaboration fall apart.
It’s all a matter of perspective.
Australia image from www.shutterstock.com
Former PM's business advisor Maurice Newman recently claimed that satellite temperature data tell a different story to data collected on the ground. He's right - but that's how it's meant to be.
Rural southern Australia has been drying out over the past several decades. Pictured here, Burra in South Australia.
Australia is the land of drought of flooding rains, driven by events such as El Nino. But despite this variability, some parts of Australia are clearly drying out.
Despite a decade of drought and declining rainfall in parts of Australia, there’s still plenty of water to go around.
Maroondah reservoir from www.shutterstock.com
The Millennium Drought ended more than five years ago, but several years of below-average rainfall and El Niño have brought drought back to many parts of Australia. Our latest report on water in Australia shows rainfall is continuing to decline in eastern Australia and increase in the north.
17 mile regulator - a computer controlled flume gate - on the East Goulburn Main Channel Water.
With El Niño upon us and the prospect of water scarcity ahead, how well positioned are we to make accurate and timely decisions about water resources?
This doesn’t happen very often. But the Bureau of Meteorology is getting much better at predicting when it will.
AAP Image/NEWZULU/BILL SHRAPNEL
Moaning about weather forecasts is almost an Australian national pastime. But weather predictions have improved a lot, and with a new satellite and supercomputer, they are about to get even more reliable.
A water treatment pond.
Image courtesy Seqwater
The Bureau of Meteorology recently released for the first time comprehensive national data on recycling and desalination.
El Niño is often associated with drier conditions in winter and spring in eastern Australia.
Tim J Keegan/Flickr
El Niño is officially here according to the Bureau of Meteorology.