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Climate change – Analysis and Comment

The new normal? … Climate change will be at the forefront of discussion in the weeks following Hurricane Sandy. Wandering the World/Flickr

After the deluge, what hope the politics of climate response?

I am writing with Hurricane Sandy having brought devastation to New York and the East coast of the United States. Much has been written on the politics of climate change. But until a few days ago, a severe…
New Jersey was hit hard by the storm surge. Michael Reynolds/AAP

Losing higher ground: hurricanes and sea level rise

As I write this, the worst coastal flooding effects from Hurricane Sandy’s attack on the densely populated regions of the US northeast are almost over. Even so, the effects have been significant: record…
Recent extreme weather doesn’t tell us how the future will be. EPA/Justin Lane

Hurricane Sandy: the new normal?

Are we now experiencing the “new normal” climate? Let’s look at the recent evidence: A storm of historic proportions is moving up the east coast as a Nor’easter without precedent, since no such storm has…
Sea levels are rising globally at record-breaking rates and Antarctica is playing an increasing role. Matt King

Weigh-in reveals Antarctica’s losing 190 million tonnes a day

A small slice of Antarctica turns up along your coastline each year. We’re all glad it’s just a small slice, given Antarctica could deliver a total sea-level rise of 59 metres. That’s not going to happen…
Methane locked under the Arctic ice could take climate change to a whole new level. Antonio Delgado Huertas

Methane hydrates: a volatile time bomb in the Arctic

The risk with climate change is not with the direct effect of humans on the greenhouse capacity of Earth’s atmosphere. The major risk is that the relatively modest human perturbation will unleash much…
Children suffer around 90% of the disease burden from climate change. Flickr/SeemaKK

Future under threat: climate change and children’s health

Climate change has been widely recognised by leading public health organisations and prestigious peer reviewed journals as the the biggest global health threat of the 21st century. A recently released…
Mitt Romney and the Republicans are openly sceptical of climate change. EPA/Michael Reynolds

What happened to climate change? Fox News and the US elections

Climate change has been significantly absent from the US presidential election campaign. President Obama, who made climate change a key plank of his 2008 campaign, has not been anywhere near as vocal in…
The role of powerlines in bushfires is raising some pressing issues of climate change adaptation. Paul Hocksenar

Hot issue - bushfires, powerlines and climate change

We have unwittingly hardwired a bushfire ignition source throughout our flammable landscapes – powerlines. Powerlines can fail under any conditions but the risk increases on days of high bushfire risk…
Humans as well as animals are affected by climate change. A treaty could keep them safe and reduce forced migration. AAP

We need a treaty to help people displaced by climate change

Climate change will lead to significant human displacement. The Intergovernmental Panel on Climate Change (IPCC) and other groups warn that the effects – including rising sea levels, heavier floods, more…
The climate system is highly sensitive to radiative forcing, so it’s no wonder we’re seeing more extreme weather events. Isn’t it time to take notice? AAP

The atmosphere’s shift of state and the origin of extreme weather events

The linear nature of global warming trends projected by the IPCC since 1990 and as late as 2007 (see Figure 1) has given the public and policy makers an impression there is plenty of time for economies…
Will we ultimately see 2012 as triumphant, or as just one step in an emerging global tragedy? Jenny Varley

Opening the fabled Northwest Passage: triumph or tragedy?

A combination of 33-year satellite records, measurements made over the past century, and long-term proxy analysis suggests Arctic sea ice may be at its lowest level for more than 1,000 years. According…
We thought we’d set a safe limit on climate change - 450ppm CO2 - but it may be too high for most of the world’s reefs. Paul Toogood

Climate change guardrail too hot for coral reefs?

One of the ambitions of the United Nations Framework Convention on Climate Change (UNFCCC) is galvanising the international community to avoid dangerous interference with Earth’s climate. To do this, it…
Over summer, the US has been dry and hot. It’s not alone. EPA/Larry W Smith

Northern hemisphere has another hot, hot summer

The 2012 northern hemisphere summer, like its two predecessors, has seen a wide range of climate extremes, many involving heat. In most recent summers there has been at least one part of the world with…
Bumping into a jaguar in Mexico’s cloud forest could soon be a thing of the past. Kjersti Holmang/Wikimedia Commons

Head in the clouds: reserves won’t save Mexico’s forest

The chances of being roared at by a jaguar in a Mexican cloud forest are already low, but that is precisely what happened to me during a recent fieldwork expedition. I was very lucky to see a jaguar close…
US development of wind energy is lowering emissions without reducing economic growth. Sam Beebe

Climate Commission: global climate action gathers momentum

Ninety countries representing 90% of the global economy are committed to reducing their greenhouse emissions and are taking action to do so. This is one of the take-home messages from the Climate Commission’s…
Could listening be the way forward for scientists and science? shannonkringen

Help needed: can you fix the science/ society divide?

Want to help fix the science/ society divide? We’re making a documentary looking at how we might do this, and we’re looking for your help. Why? Well … You don’t need to be a rocket sociologist to know…
Little penguins are among a number of species that are threatened by climate change. AAP/Rick Stevens

Ocean winners and losers revealed in Marine Report Card

Fish are on the move in Australia’s waters. In southern Australia, scientists, commercial and recreational fishers, divers and beach-goers are reporting the presence of new species. The movement of species…
Coral species Acropora monticulosa is becoming more abundant at the Solitary Islands in northern NSW.

On the move: corals migrate south into NSW’s warming waters

The east coast of Australia is a global hotspot for the effects of climate change, especially in the marine realm, where average water temperatures have increased by almost half a degree over the last…
Many Australians think they have experienced events associated with climate change. AAP Image/Tony McDonough

What does ‘belief’ in climate change really mean?

Where one stands on “climate change” has been such a vexed and often confusing issue, at dinner parties, over coffee, with the taxi driver, and in terms of media reporting of where the Australian public…