We still don’t know enough about questions such as where the tipping points are for Arctic ice melt.
Christine Zenino/Wikimedia Commons
The Paris agreement has given us some solid targets to aim for in terms of limiting global warming. But that in turn begs a whole range of new scientific questions.
Really deep cuts in aircraft emissions are still a distant prospect.
Joakim Lloyd Raboff/Shutterstock.com
Governments and the aviation industry have welcomed new proposed aircraft emissions standards - which rather suggests that the new rules don't go far enough.
Countries such as Mauritania have contributed little to climate change, yet face the worst impacts such as crop failure.
The countries that have contributed the least to climate change will experience the worst of its effects.
Renewable energy is at the more expensive end of the emissions cost curve, but is a vital piece of the bigger picture.
AAP Image/Lukas Coch
Australia's greenhouse emissions are once again rising, after a decade of consistent declines. But the right policies are already in place to turn things around - they just need to be ramped up.
It’s a tall order - especially when it’s spelled out on the Eiffel Tower.
How will the world actually deliver on the Paris climate ambition to hold global warming to no more than 1.5℃? It's a tough scientific and technical challenge.
Laurent Fabius has brought the gavel down on a successful deal.
The Paris deal has laid the foundations for real global progress on climate change. On that score, it must be judged a huge success.
Aided by expanded farming in Asia, there’s been a global increase in greenhouse gases from farming.
The Paris climate summit yielded a pact to reduce air pollutants that contribute to global warming but missed a chance to address the interlinked effects of agriculture and climate.
Leaders celebrate the adoption of the Paris Agreement on Saturday.
The Paris Agreement is an extraordinary achievement. But there is much work to be done to ensure global warming does not exceed dangerous levels.
Coal mines are increasingly incompatible with the world’s carbon budget.
The Paris climate agreement doesn't specifically address cutting down on coal, but the tide is turning against coal mining anyway.
There's a huge gap between what India claims it can do, and what it's actually doing to bring down emissions.
The world’s soils store four times more carbon than its plants.
A new bid to boost the amount of carbon stored in the world's soils has been launched at the Paris climate summit.
A worker at a coal power plant in China.
The greenhouse gases that cause climate change will take centre stage at the upcoming Paris climate talks. What are they and what are their effects?
New technique captures 78% carbon using molten tin.
Gas is the solution to some but not all our problems.
UK's decision to close coal power plants is really a statement of the obvious, and does nothing to answer the problem of what to do afterwards.
Australia can balance energy, water and food needs with the environment.
Wind turbine image from www.shutterstock.com
We have all the tools to achieve economic growth and environmental sustainability - we just have to choose to use them.
Methane monster – landfill in Danbury, Connecticut.
Evan Schneider/UN Photo
Using more accurate data, researchers find that waste disposal at methane-emitting landfills is two times greater than previous EPA estimates.
Businesses that emit large amounts of greenhouse gases will have their emissions capped.
Australia's new cap on emissions includes aspects of a "baseline and credit" emissions trading scheme. That's cheaper for businesses, but means more regulation.
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,
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.
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.
Climate costs can seem scary, but it’s all in how you look at them.
Bills image from www.shutterstock.com
Is ambitious action on climate change a recipe for a significant hit to the economy and our living standards?