The Great Barrier Reef is in trouble, and a draft government plan to ensure its survival does not go far enough. A number of submissions including those from the Australian Academy of Science and Environmental…
Greens senator Scott Ludlam’s prophecy that environment minister Greg Hunt has been directed to play solitaire for an entire term of office is so far holding up to scrutiny. It is looking increasingly…
Reef historian Iain McCalman, in Sydney, and reef scientist Stephen Palumbi, in California, are monitoring reef degradation from opposite sides of the planet. They compared notes. Iain McCalman: A recent…
Australia’s coastal towns, many built around fisheries and tourism, are particularly vulnerable to climate change. South east and south west Australia are marine hotspots — they are warming much faster…
Heatwaves — Australia’s biggest natural killers — are getting more frequent and hotter thanks to climate change. One day cities such as Melbourne may see unprecedented heat, perhaps 48C or higher. But…
In New South Wales in 2013, bushfires in January and October collectively burned 768,000 hectares of bushland and destroyed 279 homes. Tragically, two people lost their lives and the damage was estimated…
Humans have so much influence over the global environment today that we have crossed a major threshold in Earth’s long history, entering a new stage in geological time which some scientists call the Anthropocene…
One of nature’s most spectacular events occurs every autumn, when the leaves of hardwood trees burst into brilliant color before falling to the ground. These autumnal displays in the eastern United States…
Industrial civilization must become technologically, economically, politically, and morally sustainable to hold the earth’s temperature below 2°C (3.6°F) higher than its preindustrial average. The problem…
News emerging from Washington last week suggests climate change may amount to more than an FAQ in the appendices of this November’s G20 leaders’ summit agenda. President Obama’s deputy national security…
Former environment minister Owen Paterson has called for the UK to scrap its climate change targets. In a speech to the Global Warming Policy Foundation, he cited “considerable uncertainty” over the impact…
To have any chance of avoiding dangerous climate change we’ll have to reduce the carbon emissions from our energy sectors — currently the largest human source of greenhouse gas emissions globally. And…
The consistent message from those who would seek to exploit shale gas is that it has three distinct advantages over existing forms of fossil fuel energy: it is cheap, it has a lower influence on global…
Through burning fossil fuels, humans are rapidly driving up levels of carbon dioxide in the atmosphere, which in turn is raising global temperatures. But not all the CO2 released from burning coal, oil…
In June 2012 the Labor government announced the “world’s largest” system of marine parks, adding 2.3 million square kilometres and taking the overall size of Australia’s Commonwealth marine reserves to…
Human activity is driving sea levels higher. Australia’s seas are likely to rise by around 70 centimetres by 2100 if nothing is done to combat climate change. But 2100 can seem a long way off. At the moment…
You’ve changed your lightbulbs, you recycle, you’ve retrofitted your house, cycle when you can, and drive an electric car when you can’t. You’re doing your bit to reduce your carbon emissions and prevent…
Demography is destiny. It’s an old idea but it remains as true as ever, despite the fact that it doesn’t get anything like the attention it deserves. It’s not hard to see why: not only is there a crowded…
In the summer of 2010-2011 Western Australia experienced an unprecedented heatwave — but not on land. Between December 2010 and April 2011, sea temperatures off the WA coast reached 3C above average, and…
The upper layers of the world’s oceans have been warming much faster than oceanographers realised over the past few decades, according to a new study. Sparse sampling of the Southern Hemisphere’s oceans…