What happens when you cross a venture capitalist with a major national scientific research organisation?

CSIRO Corporate Headquarters, Campbell. Image credit: Bidgee – Own work, CC BY-SA 3.0

I’m not sure if there’s a punchline, instead just a rather alarming answer. A couple of days ago, over on the other side of the world, Larry Marshall, the chief executive of Australia’s government agency for scientific research, made a disturbing announcement. Australia’s national science agency, CSIRO (the Commonwealth Scientific and Industrial Research Organisation) is to face a further 350 job losses (over 5% of its workforce) over the next two years. Primarily these losses look to be from the Oceans and Atmosphere division, affecting ongoing work on monitoring and predicting the Earth’s climate.

The job losses themselves are a huge blow for Australian and global climate research, and give the impression that the current Australian regime are perhaps not totally committed to upholding their end of the Paris agreement. This doesn’t say much, given that the Australian commitments were widely derided for being pretty weak in the first place.

So why is CSIRO’s current work important? Taking just one example, CSIRO plays a key role in monitoring the current state of the atmosphere, positioned as it is in one of the few countries in the Southern Hemisphere with well-developed scientific infrastructure. The Cape Grim atmospheric monitoring station in Tasmania, has been recording levels of southern hemisphere greenhouse gases for the last 40 years. The station mostly receives air that has travelled over the southern ocean free from pollution sources, thus providing a key record of southern hemisphere background levels of various atmospheric constituents. It’s basically the southern hemisphere equivalent of the Mauna Loa station in Hawaii which is regularly used as the key yardstick for northern hemisphere background levels.

Long term records like this are kind of pretty important, not just for scientific investigation, but also as an aid to public outreach. Anyone could look at these graphs of Cape Grim data for the three most abundant greenhouse gases, and pick up the take home message: they’ve all been increasing since the 1970s.

The point is that the Cape Grim measurements have played a key role in our understanding of the changes in the atmosphere over last 40 years, and should continue to do so into the future. Except maybe they won’t. If reports are to be believed it’s exactly this type of infrastructure that is under threat. Reportedly 100 people are to be unceremoniously thrown out to pasture from the Oceans and Atmosphere division, leaving just 30 left. Such a remarkably high turnover will have an inevitable effect on the quality of continuing work, not to mention quantity.

Perhaps that is what the current government in Australia want though. Less data might create more uncertainty, giving them a justification to do even less about it. But, even that view has previously been countered by the Cabot Institute’s Richard Pancost and Stephan Lewandowsky who explained why more uncertainty is no excuse for doing nothing.

Alternatively, you could take the opinion that maybe it’s not the Australian government’s responsibility to directly fund this sort of research. But, these sort of long-term records require secure long-term funding, the like of which are not found in the competitive world of academia. It’s no good chopping and changing grants every 3 years, funding different universities for different stations. There would be no consistency in the record, and suddenly any increases you see might be more attributable to a change in location than a real-world signal.

Perhaps the most alarming aspect of this is the misleading justification for the cuts, by saying that the question of global climate change has been answered. Sure, there is a consensus that human activities are affecting our climate, but that’s like saying there’s a consensus that it will rain tomorrow. It leaves questions unanswered, such as where and when?

Actually, to make matters worse the CEO added that “after Paris” the question of global climate change had been answered. Hold on, since when was it a group of politicians who were to decide whether large-scale global environmental change was happening or not? And haven’t we known about this for a good deal longer than the last three months?

Ignoring these inaccurate attempts to justify the decision, a better explanation is found in Marshall’s stated goal to make CSIRO more focused on innovation and commercialisation. The problem is, that monitoring the current state of the oceans and atmosphere or predicting its long-term future just isn’t a great commercial venture. It’s the sort of research that takes in a fair bit of funding, but doesn’t seem to offer any immediate financial return. Telling Joe Banker the world will be 2 °C warmer in 100 years isn’t going to cause the stock market to rise or fall.

That seems to contrast with weather prediction, which seems to be a profitable business. A quick look at the UK Met Office financial statements reveals over £220m in revenue in the last financial year. Admittedly most of this is from government contracts (a case of moving money round departments), but over 10% is from commercial revenue, whether that be aviation, or maybe supermarkets wanting to know whether to stock barbecues at the weekend or not. Losing the BBC contract may have been a PR disaster, but financially it was clearly not the worst thing that could have happened.

The point is that weather prediction pays. It’s a short-term prediction that is easily evaluated, allowing people to judge the value for money it gives.

Is there some way we can put a similar value on climate monitoring and prediction? I suspect not, given it would run against scientific principles of openness and be much harder to judge its worth. I imagine Larry Marshall came to the same conclusion, but then that really calls into question whether he’s really pulling his weight at CSIRO. You can’t expect all responsibility to make CSIRO profitable to fall on employees who have no entrepreneurial experience.

If more recent reports are to be believed, this move has come as a shock to even the Australian Prime Minister, and so perhaps there is hope that the news of CSIRO’s climate science death are premature. Even so, funding issues are hardly peculiar to Australia, and the question of whether climate science can fit into modern commercial ideals will inevitably keep cropping up across the globe.

It remains to be seen what exactly will happen but severe cuts to CSIRO’s infrastructure and staff will affect not just Australian science, but have global implications as well. The name Cape Grim has always struck me as being slightly ominous, and aptly (or cruelly) its 40th anniversary celebrations were due to take place later this year. Somehow I can’t imagine there will be too many people in the mood for celebrating right now though.

————————————
This blog has been written by Cabot Institute member Mark Lunt, from the University of Bristol’s Atmospheric Chemistry Research Group.  Mark’s main area of research is in the estimation of greenhouse gas emissions from atmospheric measurements.

The end of the road for diesel?

Smoggy day in Bristol
The Volkswagen (VW) emissions scandal is now into its second week, and with each day the enormity of the deception seems to increase. What started off as a few hundred thousand cars in the US has now become an astonishing 11 million cars worldwide that VW says may have to be recalled. In addition to the VW brand, diesel models of Audi, Skoda and SEAT cars have all been affected, with 1.2 million in the UK alone.
 
At the heart of this deception is the use of software, designed to be able to detect when a car was under test conditions, in order to reduce the emissions of a group of nitrogen and oxygen compounds, commonly referred to as NOx.  However, these emissions controls would not be switched on during normal driving.
 
Given that the cars were clearly built with the potential to emit less NOx, it’s not immediately clear why the emissions controls were applied only under test conditions.  Although VW have admitted they “screwed up”, they don’t seem to have said why. However, it’s a fair assumption that the emissions controls would affect the performance of the car, both in terms of drive and fuel economy. Since fuel economy is probably the main selling point of a diesel car, anything detrimentally affecting it, could easily lead to a decline in sales.
 
In addition to the flouting of the rules by VW, the wider issue is the NOx emissions themselves, which are a seemingly inevitable product of diesel powered vehicles.
 
The use of diesel as a fuel in cars has been on the up (in Europe at least) over the last couple of decades, with a supposedly superior fuel economy and hence lower CO2 emissions, meaning they have been incentivised in Britain with lower tax. However, this policy failed to take into account other pollutant emissions such as NOx and particulate matter that have been linked with thousands of premature deaths. Indeed, this push to diesel was labelled in a Channel 4 documentary earlier this year “the great car con” and just this week former science minister Lord Drayson called this policy a mistake.
 
Due in part to this push for more diesel vehicles on the roads in the UK and Europe, Bristol is just one of many cities which fail to meet the 40 μg/m3 annual mean WHO guideline level for NO2 (one of the collection of NOx gases). NOx levels in the UK have seen only a very small decline over the last decade or so, despite vehicle manufacturers telling us they make the cleanest cars yet. This contrasts with petrol vehicles, which have seen a dramatic decrease in NOx emissions over this time.
 

Why is NOx bad?

 
The presence of NOx in the lowermost part of our atmosphere, along with other pollutants such as volatile organic compounds (VOCs) promotes the formation of ozone. Not to be confused with the protective ozone layer which is much higher up in the atmosphere, ozone near the surface has detrimental health effects, mostly involving the respiratory system, in addition to being a greenhouse gas. Furthermore, NO2 has itself been linked with certain respiratory health problems
 

Is there a simple solution?

 
Well, technologies exist to reduce NOx emissions from diesel vehicles, such as urea injection, only it seems that the VW group chose to cheat the system rather than use it, since it would add cost and weight to the car. If these technologies are implemented manufacturers claim to be able to filter out particulate emissions and greatly reduce NOx emissions. But, given the current furore, why on earth should we believe them?
 
In addition, a recent report from the International Council of Clean Transportation (ICCT) said that the real-world CO2 emissions of diesel (and petrol) cars are well above those in tests. There go the supposed CO2 savings of diesel then. Again you can’t help but question why diesel cars continue to enjoy a tax break in this country.
 

The death knell tolls for diesel…

 
…Ok, maybe not. Given the massive investment that the automobile industry has put into diesel over the last 20 years or so, they’re unlikely to suddenly jack it all in. What will probably follow is a splurge of marketing diarrhoea about how each new car is the ‘greenest yet’, all the while completely ignoring the fact that the simplest way to cut emissions would be to have fewer cars not more. Nevertheless, the current news story highlights how frivolously pollutant regulations, and the health implications, are taken when set against generating a profit. It also serves to impress the need for independent verification of emissions, such as those that uncovered VW’s fraudulent behaviour. The Atmospheric Chemistry Research Group here at Bristol, performs similar verification at the national level for greenhouse gases. It has been said that not taking the time to verify emissions statistics is like dieting without weighing oneself. Well, in this case I guess they did make it to the scales, but no one bothered to check they’d been calibrated properly. 
 
————————————
This blog has been written by Cabot Institute member Mark Lunt, from the University of Bristol’s Atmospheric Chemistry Research Group.

‘New’ man-made gases: Ozone crisis or hoax?

Image by PiccoloNamek (English wikipedia)
[GFDL (www.gnu.org/copyleft/fdl.html),
via Wikimedia Commons

You may have noticed a story reported on widely recently on the discovery of 4 ‘new’ man-made ozone-depleting gases. This follows the publication of a study in the journal Nature Geoscience on the first measurements of these gases, their abundances in the atmosphere and estimated global emission rates. Responses to the reporting of this publication have ranged from the Daily Mail’s “Ozone Crisis” to the inevitable internet-based diatribe of “any research from UEA is clearly made up” in various comment sections. So just how concerned should we be about the emissions of these four gases?

Chlorofluorcarbons (CFCs)

 
The reason we care about CFCs is because they deplete ozone high up in the atmosphere, potentially exposing humans to harmful UV rays. Oh, they also happen to be extremely potent greenhouse gases, with each molecule of a CFC being equivalent to 1000s of molecules of CO2, and they sit around in the atmosphere for 10s or 100s of years before being removed. Basically they’re pretty bad, and sure they might have been great refrigerants and aerosol propellants but at what cost?

The production of CFCs has now to all intents and purposes ceased, although that doesn’t mean that emissions have completely stopped; various banks of these gases exist in fridges for example. These might leak during use or when destroyed. So it’s not entirely surprising to read that this study has found that various CFCs are still being released.

Newly measured

 
In fact the reason this paper is important is more to do with the fact that these gases have never before been measured.  Many of the media articles seem to lead with the fact these are ‘new’ ozone-depleting gases, which is a little misleading. They’re not new; they’ve been around for decades, only nobody has been able to measure them in the atmosphere before. Why’s that you might ask? Well much of it is to do with just how small their concentrations are in the atmosphere.

The fact of the matter is that the concentrations of these gases (CFC-112, CFC-112a, CFC-113a, HCFC-133a) are tiny. All four have atmospheric mixing ratios of less than 1 part per trillion (ppt). In other words, if you could isolate a trillion molecules of air (1 x 1012) then not even one of them would be one of these ’new’ CFCs. By contrast CO2 in the atmosphere has a mixing ratio of hundreds of parts per million.

Compare these newly measured gases to the major CFCs (CFC-11, CFC-12, CFC-113) whose current atmospheric concentrations are hundreds if not thousands of times greater. Even though emissions of these major CFCs are now close to zero they will still be around in the atmosphere at these elevated concentrations for decades to come. This is shown in the plot below taken from the AGAGE network measurements of CFC-12. Although the concentration has reached a peak it will take at least one hundred years for levels to get back down to pre-1980 levels, with the current mixing ratio still over 500 ppt.

Plot taken from the AGAGE network measurements of CFC-12

So emissions of these newly measured gases would have to really pick up for a sustained period of time to add significantly to the ozone-depleting effect of what is already in the atmosphere. To say the measurement of these compounds has created some sort of ozone crisis is therefore a gross exaggeration. That’s not to say that this work was a waste of time; it’s vital that we know about these compounds and their atmospheric abundance so we can ensure their contribution to ozone depletion remains negligible.

Other factors influencing ozone recovery

 
There are other potentially more important causes for concern as well. Hydrochlorofluorocarbons (HCFCs) were introduced as replacements for CFCs but also contribute to ozone depletion, albeit in a less effective way. Although these are also being phased out many of these will have a greater impact on the recovery of the ozone ‘hole’ than these newly measured species. Just a few months ago the United Nations Environment Programme (UNEP) released a report saying another gas, Nitrous Oxide (N2O), is now considered to be the biggest threat to the ozone layer over the next 50 years. Not to mention that one of the impacts of a rise in global surface temperatures could be a slowing in ozone hole recovery. There’s a genuinely interesting (honest!) explanation for why that is which I will cover in another blog.

The point is that there are lots of factors which affect the Earth’s ozone layer. Studies like the one recently published in Nature Geoscience are vital for our understanding of what the recent and current atmospheric composition is like. It might not be a problem now, but surely the key to looking after our planet, and ourselves, is to prevent things from becoming problematic in future. If we can take steps to find out where these emissions are coming from and why some of them are increasing then measures could be put in place to limit their future influence on ozone recovery.

This blog is written by Mark Lunt, Atmospheric Chemistry Reseach Group, Cabot Institute, University of Bristol, .
Mark Lunt