Climate models: Understanding the uncertainty

For years climate change and global warming have been inescapable buzz words.  The constant doom and gloom can be overwhelming, and it is no surprise people feel a little hopeless.

Climate change doom and gloom

But, climate models can give us insight into climate change and help us prepare for the future, as explored in this video:

Climate models seem like a dull, technical topic, yet they are so, so important for so many areas, from food production, to public health, to the existence of different species.

Yet, when decisions are made today, for twenty years into the future, are climate models EVER consulted?  Although climate models can’t tell us with certainty what will happen, they give us a range of possibilities, many of which have serious implications.  Yet, as a whole the information gets ignored.  The longer action is left, the more expensive and difficult it gets.  So it needs to start NOW.  We need to start NOW.

The thing is so few people “get” climate models, or really even think about them at all.  We need to change that.


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Let’s make it the norm to talk about climate models. Here’s a few easy ways you can do that:

When watching the weather forecast: Explain to grandma how weather models work, and how climate models are based on the same principle.

When you’re planning your weekend ski trip: Discuss with your mate how a predicted a 3 oC temperature increase could mean that the number of snow days on Mt Buller halve (Bhend, Bathols & Hennessy, 2012).

When your mum says, “It’s freezing today, I don’t believe this global warming nonsense!” Explain the uncertainty behind climate models, and how they represent the overall climate, not just an individual day.

Basically, get educated and get talking.


Bhend, J, Bathols, J & Hennessy K 2012, Climate change impacts on snow in Victoria, report, Bureau of Meteorology, viewed 28 August 2015,

Frame Pool 2008, Stock Video # 396-375-211, An animal cemetery of walrus bones, online image, viewed 28 August 2015,…/396375211-animal-cemetery-ma…
The Telegraph 2015, Flood Philippines 2647456k, A flooded city street in the Philippines, online image, viewed 28 August 2015,…/…/flood-philippines-_2647456k.jpg
Tornado Facts 2002, Lightning and tornado storm, A lightning strike next to a tornado, online image, viewed 28 August 2015,…/07/lighting-and-tornado-storm.jpg
Westmount Wire 2015, Melting ice polar bear on, A polar bear standing on a piece of floating ice, online image, viewed 28 August 2015,…/global-warming-i…/
Blake, M 2014, Namib desert, The dry landscape of the Namib desert in Africa, online image, viewed 28 August 2015,…/nami…/small/namib-desert.jpg
Bush Fire Front 2015, Vic23, Fire engulfing a farm in Victoria Australia, online image, viewed 28 August 2015,
NASA 2001, Blue marble, A composite image of the earth as seen from space, online image, viewed August 28 2015,
Prydain Wiki 2014, Llawgadarn mountains, A scenic image of a lake surrounded by mountains, online image, viewed August 28 2015,


Essentialist Leadership: Not trying to save the entire world

The world is turning to custard.  It hasn’t happened yet, but the youth of today are facing an increasingly ominous future.  Despite not creating the issues, we are bombarded by them on a daily basis through social media, and ultimately, it is who will have to fix them.  The sheer enormity of the many problems is completely overwhelming, and frankly, a little depressing. All we see is a future haze of unknowns.

Despite the uncertainty, or perhaps because of it, ask your average youth if they want to make a difference, and the resounding answer is “yes”.  They want to lead change.  Yet more often than not, what we actually see is only the odd action here or there, perhaps signing petition, or participating in Live Below the Line.  Then intentions are good, but there is little significant impact.  Why is there this gap between espoused values and actions?

For a start, these are not minor challenges.  These are adaptive challenges, rooted in what Heifetz, Grashow and Linsky (2009) call society’s self-propagating “broken system”. D’Souza and Renner (2014) say the issues we are currently facing can be described by the acronym VUCA (Volatile, Uncertain, Complex and Ambiguous).   Not one single person can single-handedly solve even one of the world’s problems, let alone all of them.


Furthermore, McKeown (2014) comments that when you are involved with too many separate activities which do not contribute to one meaningful whole, it is easy to fail your actual goal. Rather than consistently hammering the same nail, we are haphazardly whacking the odd one here or there.  This is not effective. Despite societal expectation, youth need to stop thinking they can do it all.  It is no wonder there is this gap between espoused values and actions, when youth are faced with the daunting prospect of an almost impossible challenge.

As shown in the video, a clear cut policy of essentialism needs to be adopted.

Just as Jimmy found, once peripheral elements are cleared, then you gain a focus to take action not only yourself, but to help others do the same.

Youth need to develop an “essential intent”.  McKeown (2014) describes this as a focus which is not only inspirational, but also concrete, meaningful and measurable.  You can think of it as a slogan or mission statement, crossed with a concrete goal.

To be honest, narrowing things down is tricky. By choosing to focus on one thing, you have to ask the tough questions about what matters to you, and make real tradeoffs (McKeown 2014). Heifetz, Grashow and Linsky (2009) explain you are demoting other important issues such as poverty and water shortages, by choosing to focus on your orienting purpose, such as climate change. This is scary.  But being “Jack of all trades, master of none”, will not even begin to make a dent in the adaptive challenges we are facing.  Sarah Sammon (2015, pers.comm. 19 May), founder of Simply Rose Petals, asserts,

“If you want to be successful, then you need to stick to your focus.” 

McKeown (2014) comments that the most effective form of human motivation is progress, because a small concrete win, helps us to gather momentum and reaffirm our faith in a project.  When you have a narrowed goal and direction, you can see things happening.  Rather than a drop in the ocean of the world’s challenges, you can see change happening in your corner of the world.  As youth exercising leadership, this is not only important for your followers, but also for you.  Without clarity and confidence in your direction, and the belief you are truly making a difference, no matter how small, then how can you possibly inspire other people to make change on adaptive challenges?

Generation Zero are a youth-led organisation in New Zealand who are a good example of essentialism.  Although their wider focus is moving New Zealand towards a zero carbon future, in their Big Ask Report, they specifically focused on reducing carbon levels to 50% of 1990 levels by 2050 (Generation Zero 2014).  This goal is ambitious, so inspirational, but also concrete and measurable, making it a clear example of essentialist intent.

(Generation Zero 2014)
(Generation Zero 2014)

The Congestion Free Network is an ambitious initiative almost entirely conceived by Generation Zero to improve public transport.  The initiative was adopted by both the Green and Labour party as their official transport plan (Forsyth 2013), and had nationwide television coverage.  Despite their aspirational fossil free goal, by working on a micro-scale, Generation Zero had made tangible progress in a short amount of time, boosing confidence for further projects, and increasing their following.

Ultimately, the state the world is currently in, means youth need to get out there and make change.  But trying to do everything will not get anyone anywhere.  Youth should adopt an essentialist approach, and focus their energies to one issue, so they can convey this clarity to their followers and start leading change on adaptive challenges.


D’Souza S & Renner, D 2014, Not knowing: the art of turning uncertainty into opportunity. LID Publishing Ltd, London.

Forsyth, L 2013, ‘The congestion free network proposal’, Campbell Live, television program, 3news, 31 July, viewed 28 May 2015,

Generation Zero 2014, The big ask: one key step for real climate action, viewed 28 May 2015,

Heifetz, R, Grashow, A & Linsky, M 2009, The practice of adaptive leadership. Harvard Business Press, Boston, Massachusetts.

McKeown, G 2014, Essentialism: the disciplined pursuit of less. Crown Publishing, New York.