Outgoing Greenpeace executive director Kumi Naidoo sees the struggles against political repression, poverty and climate change as intrinsically interconnected.
flickr/World Economic Forum
The international executive director of Greenpeace, Kumi Naidoo, explains why he believes the big global challenges cannot be tackled in isolation.
Gamba Grass is altering fire regimes in the Top End, threatening human life and property, natural assets including Kakadu and Litchfield National Parks, and compromising savanna burning programs.
One of the Australian government's new research priorities is "environmental change". But can be hard to know how to tackle such huge and interlinked issues as climate change and species extinctions.
The lawsuit accuses the US government of knowing about the harmful effects of greenhouse emissions for 50 years, but failing to stop them rising.
The US government is being sued by teenagers who say it hasn't done enough to protect future generations from climate change. The case raises the crucial question of how we weigh up society's future rights.
How do people make social choices?
A professor's extra credit question goes to show how, as humans, we do care for each other. The challenge is: how do we apply it to more pressing problems of the world?
Children from a village in Papua New Guinea’s Western Highlands Province stand in one of countless sweet potato gardens destroyed by frost across the country, August 2015.
Papua New Guinea is now facing a drought and frosts that look set to be worse than 1997, when hundreds of people died. So how can memories of 1997 save lives over the next few months?
Carbon capture and storage would help the coal industry survive, but it remains elusive.
AAP Image/Dave Hunt
For more than a decade the coal industry's favoured response to climate change was carbon capture and storage, or CCS. CCS is still the main defence, but the absence of functioning projects is making it ever more threadbare.
A new method for creating a form of graphene with carbon dioxide sucked from the air has been announced with misleading claims.
Geoengineering the climate may be more palatable if it supports natural processes.
Tree planting image from www.shutterstock.com
No matter how much we reduce greenhouse gas emissions, it will not be enough to keep global warming below 2C. Does this mean we should give up? Not at all.
The reefs of Indonesia - part of the Coral Triangle - could lose many of their species thanks to climate change.
How will climate change affect life in the oceans? New research shows that the answer is likely good and bad.
Katrina shortly after landfall.
NOAA/NASA GOES Project
The latest science on hurricanes and climate change explained – vital information for coastal regions to prepare for the effects of more intense storms.
The Earth seen from Apollo, a photo now known as the “Blue Marble”.
It is often said that the first full image of the Earth, “Blue Marble”, taken by the Apollo 17 space mission in December 1972, revealed Earth to be precious, fragile and protected only by a wafer-thin…
We're heading for mass extinctions in the world's most diverse ecosystem.
Malaysia’s Putra Mosque almost disappears behind thick smog.
Islam may predate climate change, but ancient principles can be applied to modern problems.
If only we could all get this excited about tackling climate change.
The UK should look to mainland Europe for greener music festivals.
People in the Philippines have been warned to brace for wet and wild weather, as this year’s El Nino shapes up to be the strongest since 1998.
EPA/RITCHIE B. TONGO/AAP
The seesaw between El Niño and La Niña is set to get stronger with global warming. Signs are that this year and next will deliver a big swing from one to the other, prompting fires and floods across the world.
Look to the Pacific for reasons behind the hiatus.
Study of natural variability explains slowdowns in the rate of warming in recent decades – and is key to improving climate models.
The president’s plan attacks coal power – but won’t fix climate change.
Jim Lo Scalzo / EPA
After all the jubilation about the president's plan, it's time for a reality check.
Deja vu? Anti-carbon tax sentiment has been around for decades.
AAP Image/Paul Miller
Carbon tax debates have been happening ever since the late 1980s, when policy-makers first started taking the "greenhouse effect" seriously.
Environment minister Greg Hunt and Prime Minister Tony Abbott announce Australia’s 2030 climate target.
AAP Image/Lukas Coch
Australia’s new emissions target is not “squarely in the middle of comparable economies". Towards the bottom of the pack of comparable countries, on key indicators. But Australia is coming to the party, and that counts for a lot.
Is Australia’s 2030 climate target really going to protect the coal industry?
Australian Prime Minister Tony Abbott has said his government's 2030 climate target will be good for the environment and jobs – and good for protecting the nation's coal industry.