The UN has asked world leaders to bring concrete climate action plans to this week's summit - and Australia is likely to cop heavy criticism.
The federal government this week heralded Australia's renewable energy performance. But the outlook leaves little cause for celebration.
The adverse environmental impacts of academic travel are known. It is now up to institutions to determine how to adapt to these impacts.
Australia is one of the sunniest and windiest countries on the planet, but emissions are still rising. How do you justify that?
The research has been done. The evidence is in. We know how to create cities that are sustainable, liveable and affordable. But we have yet to apply that knowledge widely across Australian cities.
Your next flight could be the single biggest contribution to global warming you make all year. Experts imagine how we might travel in future, without the 'flygskam'.
More than a century since humans learned to fly, we need to revolutionise how we stay up there.
We don't know enough about the carbon footprint of vegan foods, and that needs to change.
Forget eyecatching headlines about planting millions of new trees – natural mature forests are far better at storing carbon.
Economic growth created the climate crisis and continues to fuel it – 'green' growth is no solution.
There's precious little business case for nuclear power in Australia, but we could start with the end product: storing radioactive waste.
Turning from the conflict of airport expansions to a vision of a low-carbon transport system.
Scientists introduced credible climate change to the world in 1979, but it's taken decades for their message to sink in.
South Africa's recently introduced carbon tax may lead to financial losses in the short term, but it's necessary and will be beneficial in the long term.
At best, planting trees won't be enough on its own to slow climate change. At worst, it's a dangerous distraction.
Universities play a significant role in the high and rising air travel footprint – and they need to do more about it.
As unlikely as it may sound, a new approach for fighting the destruction of wildfires in Canada’s boreal region may lie in wetlands packed with soaking layers of peat and topped with living moss.
The Conservatives' green investment standards may not have a direct impact on emissions. But with a few tweaks, it could be effective and affordable.
Yes, Australia's greenhouse emissions are a small part of the global total. But we're a rich, emissions-intensive country that could and should be setting a much better example to the world.
A scientist explains how global warming is affecting the entire world – from the mountains, to the sea.