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.
Australia’s mountains may be small but each year they deliver enough snow for winter sports.
Australia's snow season is notoriously fickle - so what determines whether we'll get a good fall?
Tasmania’s bushfires damaged pristine bushland and stretched emergency services to the limit.
AAP Image/Patrick Caruana
This summer has seen Tasmania suffer through drought, bushfires, floods and the worst marine heatwave on record. Is this what life under a climate-changed future will be like?
Professor Morgan Pratchett surveys bleached corals on Australia’s GBR.
Cassy Thompson, ARC Centre of Excellence for Coral Reef Studies
Bleaching has hit a huge swathe of the Great Barrier Reef, with many corals in the reef's remote northern reaches now expected to die as a result of warm waters linked to this summer's El Niño.
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.
Bleaching events can leave corals weaker in the face of pollution and other stresses.
AAP Image/University of Queensland/Ove Hoegh-Guldberg
Authorities have moved the Great Barrier Reef onto its highest alert level in response to widespread coral bleaching. Months of monitoring will now be needed to assess the ongoing damage.
A bleached Seriatopora coral.
Right on cue, coral bleaching has struck the Great Barrier Reef, as the world's third mass bleaching event continues.
Fires in Western Australia in January 2015.
AAP IMAGE/ WA Department of Parks and Wildlife
February 2016 was the hottest month by the biggest margin ever. Does that mean global warming has gone into hyperdrive?
Things got very wet, very quickly, in Brisbane in 2011.
AAP Image/Dave Hunt
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.
Climate change has been implicated in record-breaking temperatures across the 20th century.
Record-breaking years have been almost impossible without human-caused climate change.
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.
Don’t dismiss what science has to say about the fate of coral reefs.
Marine scientists have been accused of being biased towards 'doom and gloom'. But it's not bias if the outlook for coral reefs really is gloomy.
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.
The land may be dry, but Western Australia’s waters are full of life.
The Great Barrier Reef might get all the attention, but what about our western coral reefs? Warmer waters and human impacts mean these reefs are in trouble.
Hurricane Pali churns over the eastern Pacific on January 11.
NASA Earth Observatory
January hurricanes are rare events, but two have already formed this month. Atmospheric scientist Adam Sobel explains the conditions that generated Pali and Alex.
Homeless in Los Angeles: Bernard Leatherhood (62) and Arthur Johnson (72).
Field research in Oakland highlights a major issue that Americans have yet to face up to: how to deal with growing numbers of homeless older people in our streets.
Here come the rains to Hollywood and Southern California.
The flood-control infrastructure built to weather heavy rains in Los Angeles sends runoff to sea – a poor design for drought-worried California.
Extreme drought, a predictable impact of El Niño, fuels wildfires on the island of Borneo on October 14.
NASA/GSFC/LaRC/JPL-Caltech, MISR Team
The third-ever 'super' El Niño is under way. Here's how it will affect your region in the US and how global warming affects this and future El Niños.
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.
Nacho Doce / Reuters
Indonesia's haze made global headlines but an intense dry season has also sparked major fires in Brazil.