Greenhouse gases

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Conventional wisdom says Barack Obama will hit political obstacles on the way to fulfilling his climate ambitions. But they might be easier to sidestep than you think, EPA/Michael Reynolds/AAP

Forget the hostile Congress – Obama can cut global climate deals on his own terms

Much has been made of the domestic political roadblocks between US President Barack Obama and climate action. But by using existing treaties he can get around the hostile Congress and help cut global emissions.
Australia’s foreign minister Julie Bishop at the last year’s Lima climate talks, where nations agreed new transparency rules over climate targets. DFAT

New UN rules put the spotlight on climate laggards to lift their game

Countries that drag their feet on climate action have fewer places to hide these days. Rules brought in at the 2014 Lima talks require them not just to set targets, but to publicly justify them too.
US President Barack Obama has unveiled the United States' most comprehensive climate policy so far. EPA/Michael Reynolds/AAP

Obama takes ‘biggest step’ on US climate policy: experts react

US President Barack Obama's new climate plan aims to cut greenhouse emissions from the nation's coal-dominated power sector by 32% by 2030. Will it get through, and how will it affect this year's climate talks?
It might be nice if buying the right to emit greenhouse pollution could be made a bit simpler. Oleandra/Shutterstock.com

Politics aside, a simple carbon tax makes more sense than a convoluted emissions trading scheme

The term 'carbon tax' is a political poison in Australia, thanks to the previous carbon tax which was actually an emissions trading scheme. Yet ironically, many economists prefer a tax over an ETS anyway.
To get to zero emissions, we’ll have to reform our energy sector away from fossil fuels. ccdoh1/Flickr

Australia can stop greenhouse gas emissions by 2050: here’s how

To avoid dangerous climate change there is a finite amount of greenhouse gas emissions, in particular CO<sub>2</sub>, that we can add to the atmosphere - our global carbon budget. If we use our budget wisely, we have until about 2050 to transition to zero net emissions. But how do we get there?

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