Not all El Niño events lead to drought in Australia. Other factors are involved and it will take some time for drought to develop now catchments are wet and most dams are full.
Etching of the 1867 flood in the Hawkesbury-Nepean Valley, depicting the Eather family.
illustrated Sydney News/author provided
Ben Henley, The University of Melbourne; Andrew King, The University of Melbourne; Anna Ukkola, Australian National University; Murray Peel, The University of Melbourne; Q J Wang, The University of Melbourne, and Rory Nathan, The University of Melbourne
Drought has both natural and human causes, but deep cuts in our greenhouse gas emissions are urgently needed, regardless.
A dry river bed in south Australia.
(Shutterstock)
Freshwater fish are suffering as drought becomes more common and severe. Whether they survive will depend on how governments manage rivers and lakes, and on taking action against climate change.
Places such as Berri were affected by Millennium Drought, caused by low cool-season rain. New materials and techniques are now being used to observe drought causes and water patterns in Australia’s history to help the future.
Gary Sauer-Thompson/flickr
Australia has always suffered heat and flood, but a detailed seasonal rainfall reconstruction of the last 800 years shows the extremes are intensifying.
Despite billions spent on trying to save water in the Murray Darling Basin, results have been disappointing.
John Williams
A dozen leading researchers have issued an urgent call to action for the Murray-Darling Basin, arguing that the billions spent on water-efficient irrigation have done little for the rivers’ health.
Nowhere to hide? With 2℃ of global warming, the stifling heat of January 2013 would be the norm for Australia.
AAP Image/Dean Lewins
Global warming of 2℃, the higher of the two Paris targets, would see current record-breaking temperatures become the norm in the future, potentially bringing heatwaves to both land and sea.
Climate change is already delivering more extremes of wet and dry to the Pacific region.
EPA/FRANCIS R. MALASIG
Scott Power, Australian Bureau of Meteorology; Brad Murphy, Australian Bureau of Meteorology; Christine Chung, Australian Bureau of Meteorology; François Delage, Australian Bureau of Meteorology, and Hua Ye, Australian Bureau of Meteorology
New research shows that global warming has already begun to exacerbate extremes of rainfall in the Pacific region – with more to come.
The Millennium drought had a huge impact on the Murray-Darling river system.
suburbanbloke/Flickr/Wikimedia Commons
Droughts are much bigger and slower than other natural disasters that hit Australia - meaning that despite their huge impacts, we still haven’t figured out how best to protect ourselves.
The Grampians, like much of Australia, has swung from Millennium Drought to Big Wet and back again, putting animal populations on a rollercoaster that could get worse as climate change bites.
Despite increases in some areas, Australia’s tree cover is at its lowest level in 40 years.
Tree image from David Lade www.shutterstock.com
After some unusually wet years, our landscape and ecosystems have once again returned to poorer conditions that were last experienced during the Millennium Drought.
Data about farms’ financial situation as well as the weather could help identify those most vulnerable to drought.
Bidgee/Wikimedia Commons
Since 1999, Australia has swung between drought and deluge with surprising speed, because El Niño has fallen into sync with similar patterns in the Indian and Southern Oceans.
One of Melbourne’s drinking water reservoirs at 30% capacity in 2010. At the time of writing, the dam is 60% full.
Melbourne Water/Flickr
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.
Drought in southern Australia in 2015.
AAP Image/Jamie Duncan
As El Nino looms, the Murray-Darling is facing another drought. But after almost a decade of investment in water trading and other policies, its prospects are better this time around.