Climate poetry

In honour of National Poetry Day and inspired by the Royal Society meeting on “Next Steps in Climate” here is my rather un-sophisticated summary of the meeting in poem form.

The climate is a-changing

We observe that it is so

Surface temperatures are rising

AND there is less of ice and snow

We climate scientist are (95%) confident

That human emissions are involved

But there is still room for further study

Some puzzles remain unsolved

Aerosols and fluffy cloud

Deep ocean heat uptake too

Need more obs and better models

I accept the challenge. Do you?

The joy of having a research group

One of the things that keeps me going when the day to day life of an academic feels less than perfect is the fact that I have a fantastic group of people to work with. At the moment, I am blessed with a great group of postdocs and PhD students who are not only productive, but work together well and are proactive about developing their own skills and careers. One of the ways they do this is through a fortnightly “aerosol” group meeting. The purpose of this group meeting is largely to develop their broader knowledge of aerosol-climate interactions rather than to talk about their own work. Each person takes it in turns to suggest a paper that everyone reads, and then this is discussed in the meeting. Such journal clubs are not new of course, but this one works particularly well since the field covered is small enough that everyone has some interest in everyone else’s work, but large enough that by regularly meeting like this, everyone’s horizons are gradually extended. We are also learning a lot about different styles of journal articles, and practicing for reviewing submitted articles for real. Today for example we considered a paper about climate feedbacks involving natural aerosols that required us to learn about gas phase chemistry emissions from plants, as well as our more usual areas. Next time it will be about climate extremes in Europe.

One of the bonuses for me of the recent office moves in our Department that saw my group and some others move to a second Meteorology building,  is that I now see a lot more of my research group on an informal day to day basis rather than only in our scheduled meetings, as they are the people I bump into. Obviously this means I must be bumping into others in the Department less, which has its disadvantages, but generally I am a very happy group leader.

I should say that I have never explicitly set out to “build” a team in any certain way. Every member of our aerosol-climate research team joined at different times and with the skills for particular positions, as well as more general research and communication skills. However  I do believe that it’s important that postdocs are encouraged to take this kind of initiative for themselves – indeed it is often that case that I am not around to attend the meetings (unfortunately for me), and they may indeed be better meetings for that very reason! Athene Donald’s thoughts on these and other skills that might be useful for postgrads and postdocs to develop are definitely worth a read.

Walk to School week… and travelling for work

This week it is “Walk-to-school” week in the UK. This morning on the way to school my son and I discussed driving to school vs walking to school – which was interesting, although his take on global warming “but then the planet might explode – it’s a good job we’re going on holiday” leaves some room for improvement.

Here is an article I wrote at the same time last year for theWeather magazine of the Royal Meteorological Society.

“This week it is “walk to school week” and “eco-week” at my children’s nursery. So, as well as wearing green and making models out of recycled materials,  we’ve been taking the bus in the mornings and walking home in the evenings (well alright, I’ve been walking, the little ones have been riding in the luxury of their double buggy). They love counting the passengers at each bus stop in the morning, and the opportunity to run across a daisy-filled park on the way home. I am discovering muscles I forgot I had! However, it does at least allow me to temporarily ease my guilt at the carbon footprint I have just by being a climate scientist .

Our success at tackling global scale problems such as climate change relies on meaningful and productive collaborations between institutions across the globe. This leaves many climate scientists with a quandary- how to maximise the usefulness of their research whilst minimising their carbon footprint?  The development of telephone conferencing via the internet which allows presentations to be shared across many desktops is one possible option. However there is no doubt that a face-to-face meeting at a conference or workshop is often the only way to make progress fast and unambiguous. For example, the Intergovernmental Panel on Climate Change holds its work meetings around the globe to allow the inclusion of as many scientists and policy makers from different regions as possible to attend at some point.

However, the transport sectors are responsible for around 20% of the global CO2 emissions, as well as producing various gaseous and particulate emissions which also contribute to air pollution and climate change. Over the past few years the impact of aviation on climate has received much attention – carbon dioxide emissions, contrails and cirrus cloud that develops from contrails contribute to global warming. This has led many organisations with a climate conscience or a public commitment to reduce carbon emissions to discourage the use of air travel. What received less attention in the media at least is the fact that globally, the greenhouse gas emissions from road traffic produces several times the change to the energy balance of the earth (leading to climate change) as global air travel. The energy change due to particles is also substantially larger for road traffic as these aerosols absorb solar radiation and generally warm up the atmosphere. The effects of maritime shipping receives some press in the guise of the “food miles” debate, but its overall effect on global temperature is probably to cool it since high sulphur content fuel results in more sulphate aerosols which scatter solar radiation away from the surface. Reducing the sulphur content in shipping fuel (desirable from an air pollution standpoint) may actually exacerbate global warming slightly.

Some scientists subscribe to carbon offset schemes either privately or more publicly, but the choice of off-set mechanism requires careful thought – not all schemes are equal in effectiveness or scientific value. Additionally, some of my group’s research relies on flying on research aircraft – potentially contributing to the particles that they are measuring (obviously we don’t fly around measuring our own emissions directly!). This has always seemed like something of a contradiction to me (and  many others, see  for example Kevin Andersons blog and this one.. ) . Striking a balance between travel that makes our research more effective, efficient and scientifically sound and minimising our impact on the environment is a considerable challenge, but should be applied to everyday car driving as well as flying). At least I’ll have something to ponder as I push the buggy up the hill towards home.”

Note that references to scientific journals were not included in the original article due to it’s intended audience, but details can be found in the following papers.

Balkanski, Y., Gunnar Myhre, Michael Gauss, G. Rädel, E Highwood and Keith P. Shine, 2010. Direct radiative effect of aerosols emitted by transport: From road, shipping, and aviation. Atmos. Chem. Phys., 10: pp. 4477-4489.

Skeie, Ragnhild Bieltvedt, Jan S. Fuglestvedt, Terje Berntsen, Marianne Tronstad Lund, Gunnar Myhre and Kristin Rypdal, 2009. Global temperature change from the transport sectors: Historical development and future scenarios. Atmospheric Environment, 43 (39): pp. 6260-6270.

Fuglestvedt, Jan S., Terje Berntsen, Gunnar Myhre, Kristin Rypdal and Ragnhild Bieltvedt Skeie, 2008. Climate forcing from the Transport Sectors. Proceedings of the National Academy of Sciences (PNAS), vol 105 (no. 2): pp. 454-458.