August 30, 2014

11:41 AM | 2014 SkS Weekly News Roundup #35B
Antarctic riddle: How much will the South Pole melt? As Louisiana sinks and sea levels rise, the State is drowning. Fast. Climate change's health toll: 'We can save millions of lives, even now' Climate change ups odds of a megadrought in Southwest U.S. Climate policy goes hand-in-hand with water policy Does Antarctic sea ice growth negate climate change? Full extent of global coal 'binge' is hidden, say researchers No economic reason to delay climate action - global commission The time for […]

August 29, 2014

7:05 AM | Oxfam: saving the tava’e (and the world)
This guest post is by Oxfam NZ‘s (relatively) new director, Rachael Le Mesurier. She’s off to the UN conference on Small Island Developing States in Apia next week, and here provides an interesting overview of the climate, sea level and other issues that are going to be on the agenda. The national leaders of some […]

August 28, 2014

6:20 PM | Exploring Arctic Ice Minima
Every year 2007-2013 had a lower Arctic sea ice extent than every year before 2007.  2014 seems likely to continue this record.  I'll also suggest below that maybe the Arctic has entered a 'new normal', with September ice extents bouncing around 4.7 million km^2. For some data to work with further, I pulled the NSIDC September figures.  It's a small, simple text file, so you can check yourself what follows.  First up, let's draw a figure of what we're looking at -- but […]
6:02 AM | US State Department underestimates carbon pollution from Keystone XL
This is like the movie Groundhog Day. I seem forever forced to correct the State Department’s errant analysis of Alberta tar sands emissions. Now, however, other people are agreeing with me. A recent paper published in Nature Climate Change reviewed the State Department’s accounting and found it deeply flawed. The authors, Peter Erickson and Michael Lazarus of the Stockholm Institute included the impacts of Keystone on the global oil markets. This inclusion tripled the climate […]

August 27, 2014

9:39 PM | Climate change research roundup: hiding heat in the Atlantic and the Arctic carbon cycle
The most recent issue of Science has two new reports on the so-called global warming hiatus and the carbon cycle in the Arctic, both of which are central to discussions of climate change and where temperature increases are being seen around … Continue reading →

Cory, R., Ward, C., Crump, B. & Kling, G. (2014). Sunlight controls water column processing of carbon in arctic fresh waters, Science, 345 (6199) 925-928. DOI: 10.1126/science.1253119

7:40 PM | 2014 SkS Weekly News Roundup #35A
Act now on climate change or face growing health risks - UN Climate change may disrupt global food system within a decade Climate sceptics see a conspiracy in Australia's record breaking heat Cutting emissions pays for itself, research shows Greenhouse gas emissions are growing, and growing more dangerous 'Incredible' rate of polar ice loss alarms scientists IPCC attribution statements redux: A response to Judith Curry Obama pursuing climate accord in lieu of treaty Pacific watch: Is El […]
4:16 PM | A database with parallel climate measurements
By Renate Auchmann and Victor VenemaA parallel measurement with a Wild screen and a Stevenson screen in Basel, Switzerland. Double-Louvre Stevenson screens protect the thermometer well against influences of solar and heat radiation. The half-open Wild screens provide more ventilation, but were found to be affected too much by radiation errors. In Switzerland they were substituted by Stevenson screens in the 1960s.We are building a database with parallel measurements to study non-climatic […]
3:02 PM | On the back of the beast
We’ve joined scientists atop a frozen debris lobe, a slow-moving landslide in permafrost. They say we’re ‘on the back of the beast’. In the heavy rain and among fog-shrouded mountains, the scientists are making these uphill treks to record how temperature, water pressure, and local geological properties determine the slope movement of the massive lobes. These repeat measurements obtained at incredible accuracy can one day help us decode the secrets of the many massive […]
1:45 PM | IPCC attribution statements redux: A response to Judith Curry
I have written a number of times about the procedure used to attribute recent climate change (here in 2010, in 2012 (about the AR4 statement), and again in 2013 after AR5 was released). For people who want a summary of what the attribution problem is, how we think about the human contributions and why the […]
11:29 AM | Poverty eradication and climate change: Is there a conflict?
Many people associate raising living standards in developing countries with increases in greenhouse gas emissions. New research by IIASA's Narasimha Rao shows that may not be the case. Continue reading →
6:23 AM | Climate Change: the Terminological Timeline
It is often said that a picture speaks a thousand words. The run of pictures below, it is hoped, will do a little more. They exist as a counterpoint to that laziest of claims - that, a few years ago, "they (the IPCC, Greenpeace, the Committee for Compulsory Implementation of Agenda 21 - take your pick) changed 'global warming' to 'climate change' because (insert pet theory here)". Skeptical Science has of course published a detailed rebuttal to the talking-point here. But it's important to […]
12:00 AM | Not quite News yet – Part III
In this series we present fictive “News Articles” which some of us wrote when participating in a Science Communication Workshop at ANU. If you want to know more about the Why and How, please see this post here. While the … Continue reading →

August 26, 2014

11:17 PM | TDB Today: Bought and paid for – the dirty politics of climate denial
It was always going to be difficult to avoid writing more about the impact of Nicky Hager’s Dirty Politics and what it tells us about the way the present government and its supporters have behaved, so in my post at The Daily Blog this week — Bought and paid for – the dirty politics of […]
4:52 PM | Athabasca Glacier: a tragic vanishing act
The Athabasca Glacier in the Canadian Rocky Mountains is probably the easiest glacier in the world to access by car. It's just a few hundred metres' stroll from the nearest parking lot on the magnificent Icefields Parkway in Alberta. The problem is, the stroll keeps getting longer by about 10 metres every year. Since 1992, the snout of the glacier has retreated about 200 metres, requiring tourists anxious to set foot on the glacier to walk a little further. The glacier has lost […]
2:18 PM | The People’s Monsoon
You might expect that a term like “monsoon” has an agreed definition and that scientists can explain when it starts and ends. Defining the monsoon is actually quite contentious, leading to the publication of many different definitions. Some define the monsoon onset according to rainfall, wind change, cloud top temperatures, or a combination of these […]Author informationMathew Stiller-ReeveI am a PhD student at the Bjerknes Centre for Climate Research. I research the monsoon […]
8:46 AM | Constructive and External Validity for Climate Modeling
It’s been a while since I’ve written about the question of climate model validation, but I regularly get asked about it when I talk about the work I’ve been doing studying how climate models are developed. There’s an upcoming conference organized by the Rotman Institute of Philosophy, in London, Ontario, on Knowledge and Models in […]

August 25, 2014

11:00 PM | My favourite megafauna; a tribute to Dippy and Dusty
By Kelly If you haven’t been following my last few posts, I have been discussing my adventures post PhD submission that include participating in a camel expedition into the Simpson Desert (see Gallery). I was lucky enough to be joining the … Continue reading →
5:54 AM | Unpacking unpaused global warming – climate models got it right
Although the global climate has continued to build up heat at an incredibly rapid rate, there has been a keen focus among climate contrarians and in the media on the slowdown of the warming at the Earth’s surface. The slowdown is in fact a double cherry pick – it focuses only on the 2% of global warming that heats the atmosphere (over 90% heats the oceans), and it only considers the past 10–15 years. Nevertheless, because there was so much attention paid to the surface warming […]

August 24, 2014

10:26 PM | Mosquitoes on the move: climate change and its effect on vector-born diseases
If you live in Florida, like I do, you come to truly fear and loathe these guys: the Aedes albopictus, better known as the tiger mosquito.  Or any other mosquito, for that matter.  In the US, we actually have it … Continue reading →

Bouzid, M., Colón-González, F., Lung, T., Lake, I. & Hunter, P. (2014). Climate change and the emergence of vector-borne diseases in Europe: case study of dengue fever, BMC Public Health, 14 (1) 781. DOI: 10.1186/1471-2458-14-781

11:52 AM | 2014 SkS Weekly Digest #34
SkS Highlights Dana's Global warming denial rears its ugly head around the world, in English drew the highest number of comments of the articles posted on SkS during the past week. Dikran Marsupial's 2014 Arctic Sea Ice Extent Prediction generated the second highest. in his article, Climate Change Impacts in Labrador, Robert Way can be seen holding the Labrador flag during a field season studying glaciers in the beautiful Torngat Mountains […]
9:00 AM | The Tea Party consensus on man-made global warming
Dan Kahan, Professor of Law and Psychology at Yale, produced a remarkable plot about the attitude towards global warming of Tea Party supporters. Kahan of the Cultural Cognition Project is best known for his thesis that climate "sceptics" should be protected from the truth and that no one should mention the fact that there is a broad agreement (consensus) under climate scientists that we are changing the climate. Without having the scientific papers to back it up, reading WUWT and Co. leaves […]
8:48 AM | Volcanoes and climate change
What happens to the atmosphere when volcanoes erupt? Can volcanic eruptions lead to climate change? In 2010 the eruption of Eyjafjallajökull in south Iceland brought air traffic in northern Europe to a standstill for almost seven days. Now, the Bárðarbunga volcano, which has erupted beneath the Dyngjujökull glacier in central Iceland, is being intensively studied by scientists. On average, there are around 50-60 volcanic eruptions around the world each year. When volcanoes […]

August 23, 2014

7:28 AM | Information Aversion
Originally posted on Azimuth:? Why do ostriches stick their heads under the sand when they’re scared? They don’t. So why do people say they do? A Roman named Pliny the Elder might be partially to blame. He wrote that ostriches “imagine, when they have thrust their head and neck into a bush, that the…
6:20 AM | 2014 SkS Weekly News Roundup #34B
A tale of two cities: Miami, New York and life on the edge Atlantic Ocean key to global-warming pause Claims of a global warming pause have had no impact on public opinion Climate change: meteorologists preparing for the worst Coal gas boom in China holds climate change risks Don’t dismiss a 2014 ‘super’ El Niño just yet Dumping ban urged for Australia’s iconic reef Global climate deal may fail to restrain global warming Global climate inaction will mean […]

August 22, 2014

5:50 AM | Ancient ocean currents may have changed pace and intensity of ice ages
This is a re-post from the National Science Foundation Climate scientists have long tried to explain why ice-age cycles became longer and more intense some 900,000 years ago, switching from 41,000-year cycles to 100,000-year cycles. In a paper published this week in the journal Science Express, researchers report that the deep ocean currents that move heat around the globe stalled or may have stopped at that time, possibly due to expanding ice cover in the Northern Hemisphere. "The research is […]
3:47 AM | Friday melts, weird weather and whales (it’s been a long time…)
It’s been a long time since my last post: apologies for that. You may blame a bad cold, an urgent need for root canal work, the peak of the truffle season (and truffle tours for culinary heroes1 ), the start of pruning and political distractions for the drop off in activity here. Normal service should […]

August 21, 2014

11:55 AM | Innovating to address climate change
How can we innovate successfully to address climate change? A new book by IIASA researchers shows the way through a historical investigation of past energy innovations. By Charlie Wilson and Arnulf Grubler. Continue reading →
5:49 AM | Scientist in focus – meteorologist and climate communicator Paul Huttner
Meteorologists have the tools to clearly understand how humans are affecting the Earth’s climate. For folks who study weather every day, the changes they’ve seen defy natural explanation. But most meteorologists have to balance their very limited airtime and their reporting obligations with a desire to convey the reality of climate change. It’s very rare that a meteorologist, let alone a major media organization, take time to bring in-depth discussions to their listeners. But, […]

August 20, 2014

11:02 PM | Anthropogenic climate change and glacial loss explained in a single number: 25!
A new analysis combining climate modeling with glacier dynamics has given us the first estimation of the percent of glacier loss directly due to anthropogenic climate change.  This is strong evidence and important data to understand to educate the general … Continue reading →

Marzeion, B., Cogley, J., Richter, K. & Parkes, D. (2014). Attribution of global glacier mass loss to anthropogenic and natural causes, Science, DOI: 10.1126/science.1254702

10:48 PM | 2014 SkS Weekly News Roundup #34A
A ‘major challenge’ to South Asia’s economic development Cities’ air problems only get worse with climate change Climate change reflected in altered Missouri River flow Climate scientist calls on colleagues to speak up on global warming Defending forests is daily life for Indian woman leader Deforested idle land identified as source of Indonesia "haze" fires Earth sliding into ‘ecological debt’ earlier and earlier Greenland ice loss doubles from late […]
74 Results