Opinions on anthropogenic climate change vary greatly across society, and it appears that Australia’s farmers remain largely sceptical about the causes of climate change.
Recent surveys show that only 28% of primary producers accept that human activity is the cause of climate change, compared to 58% of urban dwellers.
However, the science tells us that future agricultural production is at risk from climate change as well as being a significant contributor to greenhouse gas emissions.
Thus agricultural producers face a complex challenge of adapting to an increasingly difficult climate, while simultaneously increasing production and lowering emissions in order to meet market and societal expectations.
Regardless of farmers’ beliefs on whether the climate is actually changing and what’s causing the changes, there are impacts that will need to be managed.
When communicating with farmers on these issues, it is often helpful to talk separately about the physical, policy and peripheral impacts of climate change. This allows the conversation to move beyond a discussion of purely physical impacts, where there is often much room for scepticism, and engage with imminent policy and peripheral impacts.
Thus we coined the term – the three Ps of climate change and agriculture.
The physical – rainfall and temperature
Reliable rainfall and predictable temperature ranges are critical to agricultural production. These are the very factors most affected by a changing climate. Proactively managing these changes will help reduce risk and therefore place farmers in a better position to adapt to a future climate.

Depending on the severity of change, farmers might need to adapt in one of three ways:
Adjusting current practices: These are incremental or component adaptations, small adjustments to the existing farming system, such as crop and pasture varieties or the timing of events on the farm. Many farmers are used to making these types of adjustments in response to climate variability, regardless of whether they see this variability as temporary or as a symptom of long term climate change.
Changing systems, products or markets: Systems adaptations could include a shift from singular cropping or grazing regimes to a mixed system that may be more flexible in increasingly variable or extreme seasons. Again we can see these adaptations already taking place on farms. During the drought in western Victoria, for example, there was an opportunistic expansion of grain cropping into areas that were previously too wet in winter to sustain cropping. Likewise, the northern Victorian dairy industry adapted their farming systems during the drought, moving from summer irrigated pastures to winter annual crops that are more efficient in terms of water use. In south western Australia there has been a clear decline in rainfall since the mid-1970s, yet wheat production has increased by 3.5% over the past 20 years, a rate of growth above the national average, largely as a result of research and adaptation by grain growers.
Transformational adaptation: This includes larger types of change and could involve new products, new industries or – for those without an emotional attachment to their land – moving the farm business to another region where the production system may be more viable. This has been demonstrated recently in the wine industry, with some companies responding to climate change scenarios by purchasing land in Tasmania. This is one area where attitudes to climate change will make a difference: they will determine whether farmers’ responses are proactive and effective, or left until too late, when adaptive capacity could be eroded to the extent that options become limited.

The policy – pricing carbon and carbon farming
The policy impacts of climate change are becoming clearer with the Federal Government’s Clean Energy Future policies, the associated price on carbon and the Carbon Farming Initiative. The price on carbon could have indirect and unavoidable impacts on farm businesses, through increases in the costs of fertiliser, chemicals, fuels and power usage.
On the other side of the ledger, the Carbon Farming Initiative offers farmers an incentive to reduce emissions and/or store carbon. Unlike the carbon tax, participation is voluntary. The scheme offers landholders the potential to earn additional farm income to offset some of the increased costs due to the carbon tax.
While farmers may disagree about what is causing the physical impacts of climate change, they cannot avoid many of these policy impacts.
The peripheral – market changes and societal expectations
The peripheral impacts of climate change stem largely from societal responses to climate change. Peripheral impacts include issues like the changing demands of environmentally concerned consumers, eat less red meat campaigns and even the rise in popularity of local produce markets.
Peripheral impacts may influence how farmers market their products. They might market products as carbon neutral, use carbon footprint labelling, or sell produce at local farmers’ markets. This will certainly play a role in societal perceptions of farming and food production in the coming years. Astute farmers would be well advised to watch these developments for new and changing market opportunities.
A way forward
Separating the physical, policy and peripheral impacts of climate change on agriculture provides a useful framework for communicating with farmers, especially those who are sceptical of the science. Disagreement with the physical impacts or causes of climate change does not change the fact that there will be policy and peripheral impacts that need to be managed. Indeed, these may require a response from farmers sooner than the longer term physical impacts.
Significant research is now being conducted into mitigation and adaptation options for agriculture to manage a carbon-constrained future. It is important for farmers to remain abreast of the facts when it comes to the physical, policy and peripheral impacts of climate change. This will help them to strategically adjust their businesses accordingly, and thus maximise the opportunities and minimise the threats of this new operating environment.
Astute farmers are already adapting their farming system and business in response to climate variability and economic signals. Regardless of whether farmers agree over the causes of climate change, pro-active planning for a range of long-term impacts including physical, policy and peripheral issues will be critical to the success of farming operations in the future.
Don Aitkin
writer, speaker and teacher
Have I missed something? I began studying farmers and their politics in the late 1950s. The astute ones were adapting to floods, droughts and market conditions then. When they were seen to be successful, others in their neighbourhood followed. What is new?
And those who occupy land that has been settled for a long time have weather data in some cases for more than 150 years. That is one reason they discount a lot of the AGW scary stuff: they can see patterns in the data that help them make good decisions.
Michael Shand
Michael Shand is a Friend of The Conversation.
Software Tester
Yes you have missed something, you missed the statements from the European Physical society and the American Physical Society, the same guys that Fermilab and CERN are apart of, the same guys who may have jst found the Higgs Boson - they are the same guys telling us that AGW is real and is in large part caused by human activity, thats what you missed, instead you seem to have listened to farmers who tell you anecdotes about how in their small almost insignificant part of the world - they dont see climate change
Bruce Moon
Bystander!
Don
I suggest you are missing something.
You say that astute farmers adapt to the changing economic, social and physical environment.
May I suggest the group to which you refer are a very small part of the whole.
Work done by Griffith University during the 1980's & 1990's to understand why Darling Downs farmers resisted income producing changes showed that the majority of farmers are very conservative towards ideas emanating outside their discussion area.
When Griffith researchers…
Read moreMurray Webster
Forestry-Ecology Consultant/Contractor
No you haven't missed anything. The article says, "Astute farmers are already adapting their farming system".
Don Aitkin says "The astute ones were adapting to floods, droughts and market conditions then.". Don does not appear to me to be offering any opinion on anthropogenic climate change. Just that farmers in Australia have always adapted and some do it sooner than others.
But we do need to hear the same stories over and again - just ask any religion.
Some local records are not showing…
Read morePaul Richards
strategic foresight
Don - I can assume you missed the fact that no less than BC 'Bill' Mollison the world respected, researcher, author, scientist, teacher and naturalist. Was discounted as a fool when he lectured at the then Western Australian Institute of Technology about coming salinisation of the entire WA wheat belt in the 1960s. He had proven science on how to prevent salination and how the area could remain highly profitable without stripping trees and broad acre farming.
As it stands now Western Australia…
Read morePaul Richards
strategic foresight
"If the conservative politicians in Australia stuck by their principles instead of playing politics" - Murray Webster
Who are these principled conservative politicians?
I am sure you not talking about the likes of Malcolm Fraser or even poor old Malcolm Turnball, who was knifed in the back during the neo-liberal grab for power during the recent coup over climate change policies.
It is high time the older genration who are responsible for our current record toward the environment stepped off the soap box, it is a new generation in control.
Murray Webster
Forestry-Ecology Consultant/Contractor
Paul, I meant to refer to 'free market' principles of conservative politics, rather than individuals.
There doesn't seem to me to be many principled politicians anywhere - Tony Windsor perhaps. But, that maybe more of a comment on our political system and the voters rather than the individual politicians.
Paul Richards
strategic foresight
Murray W - the question still stands, currently the left and right side of politics in the US, Europe and Australia is littered with neo-liberals. Since a core function of this system is to include or exclude individuals the question is relevant. Resistance to change is an understatement, maintaining control would be more realistic.
If you are referring to true capitalism, real 'free market' principles and not corporatism, I take your point.
However, most of the so called 'free market' politicians…
Read moreMurray Webster
Forestry-Ecology Consultant/Contractor
Paul M,
My comment was really aimed at the apparent reversal of underlying philosophy both Labor (left-leaning social democrats?) and Liberal (neo-liberals under the guise of free marketeers), which to me seems ironic.
It would appear to me more consistent with respective underlying philosophies if Labor went for 'direct action' and the Libs went for Carbon Tax/Emissions trading approach. But that's the way the political game played out. I am attempting to point out the irony of this situation…
Read moreMike Hansen
Mr
If your point is Murray that you cannot trust labels, I would agree with you.
A bit like a "Forestry-Ecology Consultant" pining for the good old days where native bush was cleared.
Murray Webster
Forestry-Ecology Consultant/Contractor
I am really looking for 'conversation' where the issues are discussed, rather than personal attacks - I'd rather not stoop to the level of federal politics....
Paul Richards
strategic foresight
Murray - If you read enough you will see the neo-liberal leaning in 'labour' ranks, I know it is not palatable. However it is evident when we look at the support the motor vehicle industry, brown coal, big power grids, gas, certain mining groups etc.etc. have.
As for the ETS, there were elements in both that wanted ETS and Gillard is on record as still supporting the outcome in the long term. And it was also why Turnball was knifed, his leadership supported the ETS.
The pre seventies farmer…
Read moreMike Hansen
Mr
I must have missed that Murray when you started off with "Exaggerated claims from 'climate alarmists' "
Gil Hardwick
Anthropologist
No, Don, I don't think you have missed anything, not at all. Others may choose to isolate specific stimuli to change, credit discrete stages, persist in fobbing farmers off as conservative and fool-hardy, but the reality is that over this entire period their adaptation is progressive and steady.
There are many, many Bill Mollisons around, many, many Organic advocates along with all the rest, many, many well-attended conferences and seminars often in packed halls with latecomers standing along…
Read moretrevor prowse
retired farmer
A comment about the ability of farmers to change----Many improvements to agricultural practice have been instigated by farmers---not scientists. . This year the Harrington seed destructer is a new invention which could help solve the resistant weed problems in crops. A farmer idea. No- till cropping started by one scientist who copied the idea from a group of farmers. The scientist used an experiment at Chapman Valley to demonstrate that soil erosion was 3.6 kg with no- till and tonnes of soil…
Read moreTim Scanlon
Author and Scientist
Trevor I largely agree with your comments.
Farmers are highly innovative. I was speaking with one yesterday who had taken a concept from outside of ag to control pests in grain storage without the need for S7 toxins. Fantastic work. Ray's work on the destructor is fantastic, I had him out to a field day two years ago to discuss it (although it won't solve weed problems, just change the type of weed problem). You've highlighted a couple of others. But don't forget, just because their day job is…
Read moreTim Scanlon
Author and Scientist
Don, whilst I agree with you that farmers have already adapted themselves to climate change and to seasonal variability (which is often larger than the shifts in climate systems we have experienced) there is a point beyond the reach of mere adaptation.
This is why I wrote the article recently wanting farming and climate change to be understood by everyone: https://theconversation.edu.au/can-australian-farmers-take-on-the-challenge-of-climate-change-6957
Read moreIf the public don't understand farming…
Tim Scanlon
Author and Scientist
Murray there are some areas where the weather (rain and local temp) hasn't changed in the simple ways that are always discussed. Just because the climate changes doesn't mean that local rain will drop and temps increase, there are so many other factors involved. Plenty of the areas I've worked in have not seen a drop in overall growing season or annual rainfall, but they have seen massive changes to their break of season and early winter rains. The rains at the other end that hides this drop is often…
Read morePaul Richards
strategic foresight
Trevor - having lived in the WA wheat belt I agree with your comments, but those with advanced value systems are few and far between. Damage is done far to quickly, meaning on a larger scale.
The simple transfer of knowledge season to season by farmers that Gil Refers to, where gems of information pass around the district is brilliant. However does not adress the core problem.
As an example there is still a great deal of the farming population who insist on broad acre farming. Right in front…
Read moreDavid Nutzuki
logged in via Twitter
Climate change wasn't anything but a CO2 death threat to billions, not energy or farming or kids planeting trees.
Read moreIt wasn’t about a changing climate, it was about CONTROLLING a changing climate. Pure insanity! Deny that.
Check it out yourself; the scientists don’t agree climate change is a “crisis”, they only that it is “real” because otherwise why would they all have their own different studies on “effects” and almost NEVER on causes? Exaggeration in studying the effects of an agreed worst case…
paul magnus
logged in via Twitter
david, most of the scientists in the world have said that climate change is man made and is a crisis. I don't understand why you still think they haven't.
There are only a handful who don't, and out of these many have an agenda.
More and more are realizing now even how crazy things are going to be and how much sooner its going to happen as we careen along the path of mass GHG emissions. The last 2yrs have been the USAs turn to experience CC first hand. Think the world can cope with another 1C warming considering what is currently happening?
Paul Richards
strategic foresight
Paul M - These pseudonyms are not worthy of comment, their generations affect on our world has run it's course. The comments to bother with are from environmentally aware generation Y, Z and AO. But you are right on the mark and the well read young generations in Australia know it.
Trevor Ellice
Geologist
Reading this sort of propaganda makes me gag - really when will it end
James Jenkin
EFL Teacher Trainer
I'm with you Trevor.
Why are there so many articles saying similar things? Even if you believe the AGW hypothesis is sound, surely an article a day saying so becomes a political campaign?
The Conversation has a 'line' on many issues. I happen to agree with many of them - for example, that gay marriage should be legalised. But my opinion is irrelevant. Don't we want to be challenged? Don't we want a lively debate? Isn't that how society progresses?
Mike Hansen
Mr
You mean being challenged by having someone claim that "the earth is flat" or the"sun orbits the earth"?
There is nothing challenging about climate change denial.
James Jenkin
EFL Teacher Trainer
Mike, funnily, I do like hearing the nutcases - we know, for example, that alternative medicine is absurd, but there's no harm in being challenged, and having to defend your position.
But I'm not just talking about science and psuedoscience - I'm also talking about policy issues such as gay marriage, public health intervention, school funding, media regulation, and so on, where only one voice is heard on The Conversation. Are you saying there is only one rational view on these issues - all other views are equivalent to flat-earthism?
Mike Hansen
Mr
James, if you want the hard right position on politics and policy or nutty science, there is always the Murdoch press which controls 70% of the print media in this country.
I imagine you write letters regularly to News Ltd, complaining about their conservative bias.
Trevor Ellice
Geologist
Well all I want is a mechanism of how CO2 controls climate and empirical evidence it is happening - no climate scientist can provide this explanation without resorting to some sort of logical fallacy. Really what is interesting is the social science regarding what is going on now with the climate change non-issue and how societies every now and then go collectively bonkers and it takes some kid to point out the emperor has no clothes..
Mike Hansen
Mr
This is Richard Alley's lecture to the AGU - The Biggest Control Knob: Carbon Dioxide in Earth’s Climate History
http://vimeo.com/34099316
Richard B. Alley is an American geologist and Evan Pugh Professor of Geosciences at the Pennsylvania State University.
What is interesting is that we have a relatively small group of hard right climate science deniers up against the world's scientific associations. The deniers cannot point to any peer reviewed science to support their position because it is about their political views - not science.
Paul Richards
strategic foresight
Trevor E - Why does it bother you?
Most of BBoomer generations tax is paid. They have lived though the most decadent wasteful period in human now. BBoomer and silent generation have been skiing on future generations legacy, with total impunity until now. From gen Y Z OM worldview that is a pretty good run, it is there time, their choice.
No Gen Y Z OM and later will ever claw this back. Get over it and let them get on with looking after their world.
Gary Murphy
Independent Thinker
Mechanism:
1. Sun irradiates earth with short-wave energy.
2. Earth re-radiates long-wave energy.
3. Greenhouse gases retard transmission of long-wave energy, not short-wave energy.
(Stolen from one of David Arthur's comments)
Empirical Evidence:
http://en.wikipedia.org/wiki/File:Atmospheric_carbon_dioxide_concentrations_and_global_annual_average_temperatures_over_the_years_1880_to_2009.png
and
http://en.wikipedia.org/wiki/File:Carbon_Dioxide_400kyr.png
Paul Richards
strategic foresight
Mike - this is one of the simplest ways to explain the current science on co₂ , Great idea just looking back at the geological data. Thanks for that, on my list. Well pleased with it, a gem.
Trevor Ellice
Geologist
yes, yes, and yes - now dig deeper
the effect of CO2 is logarithmic and its job s done by about 150ppm. It is like white washing a window the first coat does most of the work, later coats a little but the effect degrades very rapidly.
If heat is being trapped there should be hot spot in the middle troposphere - there is no evidence of such a phenomenon.
The effects you mention are well known. This does nothing to answer the questions of whether man's emissions have an effect, how big is the effect , is the effect damaging or dangerous? No, not measureable and no, potentially beneficial - see plant fertilisation and Roman, Medieval warm period.
Mike Hansen
Mr
Trevor - All you are doing is repeating gibberish from climate denier blogs.
Hot spot blah blah, Medieval Warm Period blah blah, good for plants blah blah ...
How about some links to peer reviewed science.
Here are a series of papers that debunk your claim that the CO2 concentrations after 150ppm have no effect.
http://www.nature.com/nature/journal/v410/n6826/abs/410355a0.html
http://www.agu.org/journals/ABS/2004/2003GL018765.shtml
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.131.3867
https://ams.confex.com/ams/Annual2006/techprogram/paper_100737.htm
Gary Murphy
Independent Thinker
Agricultural Effects of Climate Change:
"While CO2 is essential for plant growth, all agriculture depends also on steady water supplies, and climate change is likely to disrupt those supplies through floods and droughts. It has been suggested that higher latitudes – Siberia, for example – may become productive due to global warming, but the soil in Arctic and bordering territories is very poor, and the amount of sunlight reaching the ground in summer will not change because it is governed by the…
Read moreTrevor Ellice
Geologist
righto guys no more links to papers as power of disrepute - argue the issues as I state them and as you understand the reduttal.
By quoting various papers you are falling for the argumentum ad authoritarim 'because the authorities says it right it is'
THINK FOR YOURSELF - you fools
Trevor Ellice
Geologist
who is gambling - show me the edivence - CO2 is benign
Gary Murphy
Independent Thinker
How else do you explain the temperature increases?
It is not the sun:
http://www.skepticalscience.com/solar-activity-sunspots-global-warming-basic.htm
Gambling is making significant changes to the atmosphere when you don't fully understand the outcomes. We are dependent on the stability of the climate for our existence.
Jonathan Ely
Student
I think this should clear things up nicely.
www.youtube.com/watch?v=EIyixC9NsLI
An absolute must watch for anyone interested in the Climate Change debate.
Mike Hansen
Mr
Trevor - careful who you call a fool.
You are clueless about climate science and now you cannot even get the "argument from authority" correct. The Latin is "argumentum ad verecundiam" and the logical fallacy is not about getting climate science from a climate scientist, or medical arguments from a doctor but invoking an authority because they are famous not because they have any expertise in the area in dispute.
http://en.wikipedia.org/wiki/Argument_from_authority
Climate science denier blogs, the source of your junk science, are the perfect example of this logical fallacy. They invoke all sorts of experts almost none of whom are climate scientists - in fact many of them like Monckton, Watts etc. are not scientists at all.
You say "THINK FOR YOURSELF" - but remember the advice from Carl Sagan "It pays to keep an open mind, but not so open your brains fall out."
Paul Richards
strategic foresight
Mike - all good points why bother though, if he was Gen Y, X or AO it might actually be worth it. They are the ones who matter now. These type of commenters will not accept their parents and their generation screwed up the planets ecosystems. It is an emotive issue and pride will not allow them to admit we their generation were wrong. Why bother with them?
Trevor Ellice
Geologist
thanks for clearing that up - and you are right that I am ignorant of climate science as I consider it a pseudoscience in the same league as creationalism.
Trevor Ellice
Geologist
And the blogosphere does not invoke the opinion of experts (exactly the opposite, Watts and co never pretent to experts) it puts out ideas and knocks down crap science - it is thankfully the only thing trying to keep the b*stards honest. Our institutions have failed us woefully on this matter.
Paul Richards
strategic foresight
Mike H - The story of carbon dioxide, and it's cycle rolls out.
Rising carbon dioxide in atmosphere also speeds carbon loss from forest soils, IU-led research finds
Underappreciated player in carbon storage should be included in global change models, researcher says;
http://newsinfo.iu.edu/news/page/normal/22755.html
trevor prowse
retired farmer
Paul---the following article gives a different answer to your quote----Fortuna, P., Avio, L., Morini, S. and Giovannetti, M. 2012. Fungal biomass production in response to elevated atmospheric CO2 in a Glomus mosseae-Prunus cerasifera model system. Mycological Progress 11: 17-26. ---The trouble with science is that it needs questions to advance
Paul Richards
strategic foresight
Trevor - said ".......the following article gives a different answer to your quote" It would, it is sponsored by a known "neo-liberal think tank" funded by Big Oil e.g. Exxon [wonderful company - not]
Read moreTrevor I have been interested and followed the global climate change issue since the mid 70s.
Spotted you instantly by tone as a denier, Gen BBoomer or older, so their is no point in repatee.
Your genration and earlier stuffed the planet. Get over it! It is about future directions, good senario…
trevor prowse
retired farmer
Rising carbon dioxide in atmosphere also speeds carbon loss from forest soils, IU-led research finds-----this article also said-----"The growth of trees is limited by the availability of nitrogen at this site, so it makes sense that trees are using the 'extra' carbon taken up under elevated CO2 to prime microbes to release nitrogen bound up in organic matter," Phillips said. "What is surprising is that the trees seem to be getting much of their nitrogen by decomposing root and fungal detritus that…
Read moreGil Hardwick
Anthropologist
My rejoinder to the article itself is that, while handy as a template helping people appreciate the various factors and complexities needing to be taken into account, the reality is that successful farmers have always been doing it.
Just because things are not always expressed in the same way, or even vocalised, does not mean they are not being taken into account. I mean, they are working farmers not academics.
The proof of the pudding lies in the simple fact that if you don't, you simply won't survive in farming.
Further proof is in watching farmers quietly and efficiently demolish a poorly presented PhD thesis or research outcome during their routine attendance at agricultural postgraduate seminars back on campus.
James Jenkin
EFL Teacher Trainer
I think the rating system on The Conversation - 'insightful' and 'unconstructive' - is ridiculous.
Let me guess - any post that says a carbon tax is ineffective, the media should self-regulate, gay marriage shouldn't be legal, or regulation to help people lose weight or stop gambling is counter-productive, will receive negative ratings.
It has nothing to do with the quality of the argument. We know the response before the post is written.
Mike Hansen
Mr
You could always try putting a quality argument.
Alternatively you could comment at Andrew Bolt's blog if you are looking for affirmation.
Paul Richards
strategic foresight
James - The quality of ones argument is very subjective, most people here are highly well read academics or members of the public with similar intelligence and depth of knowledge
Not to mention that your value system may be out of sync with many. Reading your comments over a long period, I know it is more about your value system than line of argument or intelligence.
Trevor Ellice
Geologist
well said sir - it is called bias
Ewen Peel
Farmer
Well done Richard
I think you have summed up most of the issues farmers will be facing in the years ahead very well.
Just reading some of the comments on the posted responses and it concerns me about the discounting of weather and rainfall records that people have made over a long period of time in one place.
Read moreWhat a lot of these show is that extremes have happened in the past and there is nothing new about what happens on a day to day basis.
What they dont show though is any long term…