The Berkeley Earth Surface Temperature (BEST) study recently found that global land-surface temperatures have increased by about 1°C since the 1950s — and 1.5°C since the mid-18th century. These results…
We know next to nothing about Earth ecology.
Aschevogel/Flickr
The landing of the explorer Curiosity on Mars is a fantastic affirmation of the extraordinary technical capacities of humans. A series of remote, high risk choreographed moves saw a small mobile laboratory…
Australians generally accept that the climate is changing, but we have lost confidence in politicians, experts, and the media to guide us in what to do about it.
Flickr/spodzone
Over the past several decades, scientists have studied the climate of the world and how that is changing. These studies have built on the recognition, made over 150 years ago by John Tindall, that certain…
Tree rings from around the time of Christ suggest warmer regional temperatures than those between the 1950s to the 1980s, but this does not imply higher mean global temperatures.
Flickr/Petrified Forest Ranger
A study of tree-ring data recently found that in some regions temperatures during Roman times (21AD to 50AD) were 1.05 degrees Celsius higher than the 1951-1980 mean. The paper’s lead author, Professor…
Relax and have a drink, old chap; the planet has managed to look after itself so far without any fuss.
Flickr/cyclonebill
We are familiar with the tactics, arguments, and personnel of the denial industry. Yet there is a perhaps more insidious and influential line of argument that is preventing the world from responding to…
Sign of things to come: a depleted Lake Hume in 2007, when the big dry still had a couple years to run.
Flickr/Tim J Keegan
Victoria has entered a critical decade in the race to adapt for the stresses of climate change, according to a new report from the Climate Commission. Following the release of Victorian climate impacts…
Economic modelling shows Australia’s GDP will be modestly affected by the carbon tax in the long term: but the equitable redistribution of tax revenue will be critical.
AAP
Cutting greenhouse gas emissions is like buying an insurance policy: we incur a cost to reduce a risk. Every year Australians spend millions on insuring homes, cars and their health, not because they know…
Landcare get-together: reducing our toll on nature comes in part from many of us taking steps that individually are not always so big, but which accumulate. The carbon tax is one such step.
Flickr/feral arts
A catchment threatened by salinity can’t be repaired by one or two landholders. Revegetation designed to lower watertables has its greatest ecological benefit where the plants are, but its net impact on…
Former politician and economist John Hewson speaks to ANU’s Crawford School’s Bruce Chapman and Daniel Connell.
Welcome to the latest in our In Conversation series, between former politician and economist Dr John Hewson, Australian National University (ANU) Crawford School Director of Policy Impact Professor Bruce…
What does it matter how much rain falls on the ocean? For understanding climate, it matters quite a lot.
Ines Hegedus-Garcia
Paul J Durack, Lawrence Livermore National Laboratory
Surprising evidence from the oceans suggests they are responding to warming at a faster rate than we previously thought. These changes are expressed by patterns of freshening and enhanced salinity in the…
Climate change is only one of many pressures farmers will have to adapt to.
Pete Hill
Opinions on anthropogenic climate change vary greatly across society, and it appears that Australia’s farmers remain largely sceptical about the causes of climate change. Recent surveys show that only…
Tony Abbott has pledged to repeal the carbon tax, but it may be more difficult than he thinks.
AAP/David Crosling
What’s in a name? Well, like “Montague” and “Capulet” in Shakespeare’s play, names matter quite a lot in the tribal world of Australian climate politics. The notion of a “carbon tax” has struck a raw nerve…
Behind the times: Europe already had carbon taxes in 1992 back when Vanilla Ice topped the Australian charts.
AAP/Musicbiz
We price carbon. This is nothing new. The first time this explicitly happened, Vanilla Ice hit number one in Australia, and Bryan Adams was topping the global charts with “(Everything I do) I do it for…
This is carbon. The carbon you keep hearing about on the news is probably carbon dioxide. It doesn’t look like this.
Rui Costa
You’ll doubtless have heard Australia is introducing a “carbon tax” this Sunday to reduce “carbon pollution”. What is being controlled is not just any carbon but emissions of a specific gas, carbon dioxide…
International organisation 350.org encourages the building of grass-roots movements to combat climate change.
350.org
Bob Massie, CEO of the New Economics Institute opened the recent Strategies for a New Economy conference, held at Bard College, New York with a thoughtful response to the criticism that the Occupy movement…
Sometimes even the clearest signs of change are ignored.
Flickr/baldeaglebluff
With increasing global greenhouse gas emissions, and no clear internationally-agreed path for emission reductions, we are faced with a global climate that will be at least two degrees warmer than today…
Big, ambitious strides aren’t the way to escape from this mess.
EPA/Zsolt Szigetvary
Yesterday, Nick Rowley looked at the history of sustainability agreements and why we’ve reached the impasse of Rio+20. Today he suggests a different approach. Back in November 2005, your perspective on…
Vulnerable people and places are worst affected by weather-related disasters, especially those most reliant on the land.
Chaim Zvi
Mental health problems cause profound suffering and are worthy of attention for that reason alone. But despite policy and service reform, such problems remain as common, expensive and disabling as they…
Plentiful carbon-based fuel and falling world energy prices are a mixed blessing.
Adrian Bradshaw/AAP
Since the middle of the last decade, well before the worldwide run-up in fuel prices during 2008, it has been widely believed that we are entering a new era of scarcity in carbon-based fuels such as oil…
Elinor Ostrom, the only woman to have won a Nobel prize for economics, was most famous for challenging the idea of the “tragedy of the commons”: that in the absence of government intervention, people will overuse shared resources.
acschweigert
The grand philosopher of the Commons, Elinor Ostrom, passed away on the 12th June 2012. She was a brilliant, creative polymath; a theoretician of fine precision and great intellectual power; a deviser…
How bad do things have to get before we want to seriously address environmental issues?
AAP
The fifth edition of the Global Environmental Outlook (GEO-5) - a global environmental report card by the United Nations Environment Programme (UNEP) - reads like the results for a sedentary, middle-aged…
Farmers are adept at using science to deal with all kinds of challenges, but they have their doubts about climate change.
Jeff Pang
Farmers are some of the most innovative Australians - since 1970 they have lost 7.5% of arable land, but they’ve found ways to increase production by 220%. They’re also some of the most conservative, expressed…
Darkness visible: we’re driving animals to extinction, burning through resources, and throwing out natural balances, yet consumption still reigns.
Flickr/NASA's Marshall Space Flight Center
State of the Future 2012, a quick introduction What is the “state of the future”? How successfully are we tackling global challenges threatening our collective future? These questions are asked annually…
The recent climate-related deaths of tracts of Western Australian forest go beyond a green issue.
George Matusick
Recent, unprecedented, climate-driven forest collapses in Western Australia show us that ecosystem change can be sudden, dramatic and catastrophic. These collapses are a clear signal that we must develop…
Back, sperm, back: a human egg on the tip of a pin.
Flickr/wellcome images
Elephants in the room, part two For all our schemes and mantras about making our lives environmentally “sustainable”, humanity’s assault on the planet not only continues but expands. What are the deep…