Articles sur Greenhouse gases

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The Western Treatment Plant in Werribee, Victoria, largely powers itself using biogas – a by-product of sewage treatment. Jason Patrick Ross/Shutterstock

Biogas: smells like a solution to our energy and waste problems

Could what we flush down the toilet be used to power our homes? Thanks to biogas technology, Australia’s relationship with organic waste – human and animal excreta, plant scraps and food-processing waste…
Julie Bishop will need to fight to rescue Australia’s standing after a dire first week at the Lima climate talks. AAP Image/Alan Porritt

Julie Bishop arrives at climate talks amid ignominy for Australia

Australia’s foreign minister Julie Bishop will have a lot of explaining to do when she arrives here in Lima, Peru, ahead of her address to the UN climate summit tomorrow. It will take all of her diplomatic…
Australian farmers apply nearly a million tonnes of nitrogen-based fertilisers every year. Pete Hill/Flickr

Meet N2O, the greenhouse gas 300 times worse than CO2

When we talk about greenhouse gases we usually talk about carbon dioxide. When media reports depict climate change, we invariably see the cooling towers of a coal power station. Which is fair, because…
Aerial image of gas fields in the Darling Downs. Can science keep up with coal seam gas expansion? Google Earth

Science and coal seam gas – a case of the tortoise and the hare?

One of the key questions about the coal seam gas (CSG) industry, which is now being developed at breakneck speed across Australia, is how much methane is released as “fugitive” emissions. Three weeks ago…
To match the US, Australia would have to increase its emissions reduction target to 25% below 2000 levels. AAP Image/Alan Porritt

FactCheck: are Australian and US climate targets the same?

If you use the full Kyoto period — 1990 to 2020 — the US is minus 5% and Australia is almost exactly the same. Environment minister Greg Hunt, Radio National, November 17. *We and the United States are…
Planes and airports both have big carbon footprints – and the sector is still growing. ssguy/Shutterstock

Airline emissions are set to rise – and people are threatening to sue

No matter what the aviation industry does to reduce emissions, it will be outweighed by growth in air travel, according to a new analysis. Growth will trump emissions cuts even if significant (and contentious…
Global action to reduce emissions could threaten Australia’s coal exports. Lock the Gate Alliance/Flickr

Australia’s economy will suffer if we fall behind on climate action

Australia’s economy faces grave threats from climate change, but the greatest threat is if we do not make a serious effort to reduce greenhouse gas emissions. It’s not just the physical impacts of climate…
Whatever you call it - climate change, global warming, or the greenhouse effect - it’s increasing the frequency and severity of heatwaves. AAP Image/Dean Lewins

We need to talk about how we talk about climate change

How we talk about climate change has a lot to do with how we feel about it, and what we’re willing to do to act on it. Recent research from the US found that the terms “global warming” and “climate change…
Your mum was right: it’s good for you to eat your veggies. Yet a recent survey found one in four Australians ate none in a typical day. shashinjutsu/Flickr

Healthy diet, healthier planet

The way we currently produce food around the world contributes up to 20-30% of the world’s greenhouse gas emissions and accounts for 70% of all human water use. But is it possible to eat well and take…
Australia has a possible path to 100% renewables – if governments and business can be persuaded to take it. AAP Image/Alan Porritt

Renewable energy target can go all the way to 100% – if we let it

The political outlook for renewable energy is not great – and I’m not just talking about the view out of Joe Hockey’s car window. The Renewable Energy Target (RET), which aims to deliver 41 million megawatt-hours…
Could UCG be the best way to clean up coal? Jeffrey Beall/Flickr

Is ‘underground coal gasification’ the new fracking?

Recent news that a gas project in Queensland has been charged with environmental harm has put the spotlight on underground coal gasification, or UCG. Linc Energy’s Chinchilla project was a pilot UCG project…
Better appliances and energy-efficiency rules saved Australians more than A$3 billion on electricity last year alone. Shutterstock

Energy-smart appliances cut Australian power bills by billions

The latest review of Australia’s energy-saving appliance scheme has delivered a rare trifecta: a good news story for the economy, the community and the environment. According to my estimates from data…
United Nations Secretary-General Ban Ki-moon – shown at UN headquarters with Australian Foreign Minister Julie Bishop last year – is urging governments and businesses to bring “bold pledges” to a UN summit later this year. EPA/Jason Szenes

Australia trounced Kyoto climate target, new report reveals

After a week of mostly bad news on climate change, new figures reveal that Australia easily beat its first internationally-agreed…

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