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Environment + Energy – Articles, Analysis, Comment

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The Earth is finite - so are there limits to growth? NASA's Marshall Space Flight Center/Flickr

Why uncontrolled climate change may be an ultimate limit to growth

“But who do you think’s right, Prof? The optimists or the pessimists?” At the end of my sustainability economics course in 2007, students were challenging me to end 20 years of professional fence-sitting…
Season of contrasts: while Melburnians were deluged this week, Sydneysiders spent last weekend sunbathing. AAP Image/Tracey Nearmy

Stormy or sweltering, Australia’s spring arrives with a vengeance

Spring in southern and eastern Australia is a bit like an annual game of weather tug-of-war, with summer and winter pulling at each end of the rope. While Melbourne has been lashed by stormy weather this…
Would cold hard cash help get Australians out of their cars and onto their bikes? AAP Image/Alan Porritt

We subsidise road and rail commuters – why not bikes too?

Australian governments heavily subsidise car, bus and train commuting, but not cycling. Yet a new survey shows many workers would consider riding to work if they got paid for it, and most would even support…
Australia won’t be building anything as big as the Gordon Dam any time soon. JJ Harrison/Wikimedia Commons

Dam hard: water storage is a historic headache for Australia

The agricultural green paper released last week proposes 27 new water and irrigation projects, which the government claims will be necessary for Australia’s agricultural expansion. The emphasis is firmly…
It should be possible to enjoy your holiday and give the planet a break. lazyllama/Shutterstock

Can you be a sustainable tourist without giving up flying?

Australians love to travel. About 9 million Australians travelled overseas last year, 60% of them on holiday. For most tourists, sustainable development and climate change were probably not high on their…
Apollo Bay in Victoria. Australia’s coastal towns are vulnerable to changes in the surrounding seas. ccdoh1/Flickr

Your coastal town’s climate score? There’s a website for that

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…
The government knows that solar panel subsidies are very popular with voters. zstock/Shutterstock

The pitfalls of using renewable energy as a political football

Federal industry minister Ian Macfarlane has finally revealed his opening gambit on negotiations on the future of the Renewable Energy Target (RET). He and environment minister Greg Hunt have pledged to…
Australia’s reputation for strict farming standards helped its beef industry weather the BSE crisis. Malcolm Paterson/CSIRO/Wikimedia Commons

Australia shouldn’t sacrifice food safety standards for free trade

Ten years on from the Australia-US Free Trade Agreement, Australia is entering another round of negotiations towards the new and controversial Trans-Pacific Partnership. In this Free Trade Scorecard series…
When it gets hot in the city, where’s the best place to go? Alpha/Flickr

Smart urban design could save lives in future heatwaves

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…
A green trade deal would encourage the development of renewable energy in big carbon emitters such as China. Kaj17/Flickr

Trans-Pacific Partnership threatens a green trade deal

Ten years on from the Australia-US Free Trade Agreement, Australia is entering another round of negotiations towards the new and controversial Trans-Pacific Partnership. In this Free Trade Scorecard series…
Starting earlier, lasting longer: the challenge of managing the New South Wales bushfire season is getting harder. AAP Image/Dan Himbrechts

Bushfire season in New South Wales grows longer and stronger

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…
The Ord River dam, completed in 1971, formed Australia’s largest artificial lake in the far north west. Graeme Churchard/Flickr

Dams are not the smart way to secure water for agriculture

Some 27 irrigation and dam projects are highlighted in the green paper for agricultural competitiveness released this week by agriculture minister Barnaby Joyce. Six of the projects – five in Tasmania…
Portable fusion by 2015? Still the stuff of science fiction, sadly. Ed g2s/Wikimedia Commons

Don’t get too excited, no one has cracked nuclear fusion yet

Aerospace giant Lockheed Martin’s announcement this week that it could make small-scale nuclear fusion power a reality in the next decade has understandably generated excitement in the media. Physicists…
Sydney Lord Mayor Clover Moore gives car-sharing a try. By 2016, one in ten of the city’s households will have joined a car-share scheme. AAP Image/Paul Miller

1,000 cars and no garage – why car-sharing works

Owning a car can be a hassle, especially if you live somewhere where driving is an occasional, rather than daily, necessity. This might help to explain why car-sharing schemes are going from strength to…
Could carbon capture and storage be the way to clean up coal power stations, such as this one in Australia’s Latrobe Valley? Monash University/Flickr

Carbon capture and storage — reality or still a dream?

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…
A new study shows plants may absorb more carbon than we thought. Jason Samfield/Flickr

Plants absorb more CO2 than we thought, but …

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…
Indigenous rangers at the Fish River Station in the Northern Territory. Indigenous Land Corporation

Why Australia’s outback is globally important

There are places in Australia that are awe-inspiring, spectacular, mysterious; they touch our spirit and help define our nation. Kakadu is one, Uluru another, the magnificent red sandy deserts, the Kimberley…
Australia’s Commonwealth marine parks were designed to protect marine life, including important foraging areas for sea birds.

Marine park review looks set to repeat past mistakes

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…