This common lionfish (Pterois volitans) was sighted more than 200km further south than expected down the NSW coast by 14-year-old scuba diver Georgia Poyner. It’s one of almost 40 verified observations she has submitted to Redmap.
Redmap/Georgia Poyner
We know the warming seas are forcing some marine life to new waters, but we don’t know much about how fast and how far they are moving. But now you can help scientists find the answers with Redmap.
Carbon in some types of ancient permafrost is digested by greenhouse gas-producing microbes.
US Bureau of Land Management
Scientists are studying how carbon-rich permafrost known as yedoma acts much like frozen vegetables to hungry microbes – and is becoming an additional source of heat-trapping gases.
Low carbon choices such as solar power are essential for the African continent, if it intends to stop the harmful global warming effects.
www.shutterstock.com
If we can convince people that climate change is real and important, then surely they will act: this intuitive idea underlies many efforts to communicate climate change to the public. But it may not be the best way.
China knows the smart money is on renewables, and not just because of climate change.
Reuters/Carlos Barria
China is pouring money into clean energy - not just to tackle climate change but because these are economically fruitful industries. And as China develops them, the technologies will get cheaper for everyone.
A rescue worker battling a bushfire in South Australia, 2015.
Department of Fire and Emergency Services/AAP
Global warming is, by definition, experienced worldwide. But a new study shows that the tropics were the first places on earth where the human effect on climate outstripped normal climate variations.
Motivation to act: Beijing pollution.
pagedooley/flickr
A summit between officials from the US and China on climate change underscores the crucial role cities need to play in meeting national carbon-emission goals.
Pope Francis and UN Secretary-General Ban Ki-moon are together seeking to mobilise world opinion to change the way we live and produce.
EPA/L'Osservatore Romano
On his first visit to the US, Pope Francis will highlight the challenges of poverty and sustainability. A related issue, he acknowledges, is population. So what does that mean for Catholic teaching?
Corporate capitalism has locked humanity into a process of creative self-destruction.
'Insatiable' by Theodore Bolha
To make a meaningful difference to climate change, businesses will have to break out of a cycle of exploiting the earth’s resources in ever-more creative ways.
The world of coal: a still from the new Minerals Council advertisement.
YouTube
The Minerals Council’s new coal ad is the latest to attract derision online. But for the resources industry, the mockery may just be collateral damage in the wider mission to reach out to its supporters.
How much staying power? A calving front of the Antarctic ice sheet.
NASA/Jim Yungel
If we burned all fossil fuels, the loss of ice in Antarctica would raise sea levels 160 to 200 feet, but even our current trajectory could lead to dramatic sea level rise.
The best way to ensure emissions reductions are permanent is to transform the energy sector.
Carbon emissions image from www.shutterstock.com
58 countries have submitted their climate targets ahead of international talks in Paris. We know the numbers, but not all efforts to combat climate change are equal.
Yes, it’s been cold. But the hot weather just keeps on getting hotter.
AAP Image/Tracey Nearmy
Melbourne, Canberra and much of southern Australia have shivered through a cold winter. But on a longer view, record cold snaps are disappearing, while Australian heat records continue to be broken.
The Abbott government’s instinct on foreign policy is to approach it through the lens of domestic politics.
AAP/Lukas Coch
The pressure the Abbott government faced over the Syrian refugee crisis hints at a broader trend. Global political dynamics are now exposing a credibility deficit in Australian foreign policy.
More frequent disasters – such as Cyclone Pam which struck Vanuatu this year – will leave Pacific islands struggling to recover.
Edgar Su/Reuters
As Prime Minister Tony Abbott attends the Pacific Island Forum summit today, attention has again turned to how the low-lying islands will deal with global warming.
Noami Klein speaking in Sydney.
Christopher Wright
Christopher Wright speaks with Canadian journalist, author and activist Naomi Klein about capitalism's impact on the environment and how it has influenced our responses to climate change.
Businesses that emit large amounts of greenhouse gases will have their emissions capped.
Greenstone Girl/Flickr
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.
Falling renewable costs could make action on climate change cheaper.
Simon Yeo/Flickr
Nobel Laureate Peter Doherty’s new book explores why so many people today selectively reject science, and in the process gives a behind the scenes look at how science really works.
Outgoing Greenpeace executive director Kumi Naidoo sees the struggles against political repression, poverty and climate change as intrinsically interconnected.
flickr/World Economic Forum