More on organic farming, trade-offs, energy futures and small-farm definitions in this post. Veritably, it’s your one stop shop for a pick ‘n’ mix of eco-futurism…partly because indeed I have a few addendums to report on recent posts, and partly because despite my flippant recent remarks, I’m a bit too busy on the farm and on other things just now to put together a properly structured post.
So, first on organic farming, reflecting back on my previous post, I fear that despite my criticisms of the ecomodernists and their ‘land sparing’ agenda, I still accepted at face value a little too much of their lofty San Francisco research institute view of the world in it. My mistake was to concede without demur the claim that organic farming has lower yields and a greater land take for leys. Leafing through Peter Rosset and Miguel Altieri’s new book1, plus re-reading a paper by Catherine Badgley and co-authors2 (one of whom is Jahi Chappell, a valued contributor to this site) reminds me that organic yields are typically lower than conventional ones in wealthy countries but higher in poor countries.
The way I’d gloss this finding is that in rich countries ‘conventional’ farming is usually a high input – high output undertaking with per acre yields approaching yield potential, whereas in poor countries much ‘conventional’ farming is undertaken by poor people on small plots who can’t afford expensive inputs like fertiliser. So it’s usually a low input – low output undertaking. The introduction of various ‘organic’ and agroecological techniques – leguminous cover cropping, multi-cropping, mulching etc. – helps increase yields, so in these countries ‘organic’ farming (broadly conceived) helps move farmers toward low input – higher output systems. The two citations above provide numerous examples.
Given that a good deal of farming globally is of this conventional low input – low output kind in poor countries, I think the Blaustein-Rejto and Blomqvist article I was critiquing in my last post erred in not reckoning with this fact. And so did I. Mea culpa. I suspect it changes considerably the global picture they were trying to paint. Unless of course you take the view that poor farmers ought to get out of farming altogether and leave it to the big boys with the NPK…which pretty much does seem to be the Breakthrough Institute line. It’s not one I happen to agree with. But that’s another story.
Another line of enquiry on this point was raised in Joshua Msika’s comment that small farms produce the bulk of the world’s food. I mentioned in reply that a figure of 70-80% of the world’s food is often cited as the contribution of small and family farms, but the origins of the figure were ‘obscure’. I did a bit more digging around on this issue (mostly in the folder on my hard drive named ‘Small farm productivity’ – sometimes I marvel that my meticulous organisation is exceeded only by my forgetfulness) and found such figures in this report from the UN’S Food and Agriculture Organisation, and this one from the ETC Group. This report from GRAIN also weighs in on the issue.
Bear in mind, though, that a family farm isn’t necessarily that small by global standards. And that much of the food produced isn’t traded – so I think my original argument stands. Gunnar Rundgren made the interesting point that these figures may no longer hold true with the economic rise of India and China, where most of the world’s small farms have been located. Though working my way through Jan Douwe Van Der Ploeg’s Peasants and the Art of Farming3 as I currently am, I note that he talks of a ‘return’ to small family farms in China and Southeast Asia. Just as one line of enquiry closes, another one opens up… (By the way, Gunnar – your book is now near the top of my ‘to read’ pile…sorry I’ve been so slow).
Finally on the question of organic farming, here’s a shout out from Small Farm Future to the organic movement. There are plenty of people gunning for it in the world of conventional farming – as exemplified by the Breakthrough Institute article. And there are plenty of people gunning for it in the world of alternative or regenerative agriculture too. For sure, it’s not above criticism on numerous fronts. But the organic movement was talking about cover cropping, biodiversity and the importance of healthy soil and soil life – which pretty much everyone now agrees is important, even if they disagree on how to achieve it and how to balance the trade-offs involved – decades before most of us jumped onto those bandwagons. A little bit of credit where it’s due seems in order.
Ah, trade-offs – an interesting issue discussed by Andy and David under my last post. Above, I mentioned low input – low output farming and high input high – output farming. Wouldn’t we all love to practice low input – high output farming? Well, as Andy and David suggested, like many too-good-to-be-true, everyone’s-a-winner schemes, such systems are proclaimed often enough in print but are harder to find on the ground. Thomas Sowell’s adage “there are no ‘solutions’, only trade-offs” has a lot of force to it. Is he overstating his case? Possibly. But I think win-win situations indeed are harder to find than we often suppose.
In biological/agronomic contexts I was influenced on this point by Ford Denison’s book Darwinian Agriculture4 – Denison argued, convincingly I think, that it’s unlikely we’ll find simple win-win agricultural improvements that have been missed by millions of years of natural selection (and, I might add, thousands of years of human selection). Which is not to say that no improvements are possible. Wild grasses will never greatly improve their harvest index until they form a parliament and agree a long stalk non-proliferation treaty. But humans have done that job for them, for certain wild grasses at any rate, turning them from wild grasses to domesticates like wheat in the process, but it’s not a win-win…still less a win-win-win (ie. an improvement for all humans, all grasses, and all other organisms). There have been numerous downsides to the agricultural revolution.
I was musing about this point after being alerted to this paper by Snapp et al, which cites my own paper ‘The strong perennial vision’ with an implicit criticism, as follows: “Opportunity costs associated with the low grain yield relative to the high harvest index of annual crops are one of the most persistent critiques of perennial crops (Smaje, 2015). Agronomic evaluation of perennial analogues of annual wheat and rye suggest a substantial yield penalty….This is not surprising as, to date, minimal investments have been made in breeding perennial forms of annual crop species.”
Well, I’d rather be cited critically than not at all…but, hang on a minute, isn’t there a direction of causality issue here? As I see it, there isn’t a yield penalty because there’s been minimal breeding investment. There’s been minimal breeding investment because there’s a yield penalty, for reasons that are pretty hard-wired ecologically, and eminently understandable: as detailed in my paper, there’s a strong trade-off between longevity and harvest index, so the chances of producing a perennial grain as high yielding as annual grains is low. Farmers through the ages didn’t choose annual grains for productivity over perennials out of some random caprice but because they didn’t want to waste their time. In their response to my original paper5, the Land Institute picked me off on a few minor points and raised the valid issue of genetic load, but avoided the core issue of ecological rather than energetic trade-offs. That’s not to say that there isn’t a role for lower-yielding perennial grains (I have no problems with the weak rather than the strong perennial vision), but for those seeking a trade-off free substitution of annual for perennial agriculture…well, I’d advise packing a sleeping bag, because I think your journey will prove a lengthy one.
All of which is a long-winded way of saying, yup, there are no ‘solutions’, only trade-offs. One up to Sowell.
But what about win-wins in the social rather than the natural world? Quite simply, I find it hard to imagine any real-world policy that everybody in the world would universally think was a good idea. So too did Vilfredo Pareto, one of the founding fathers of Sowell’s discipline, economics, so he decided to give up without even trying. Economists define Pareto optimality as a situation in which nobody can be made better off without making someone worse off – an equilibrium point of maximum efficiency. No doubt it’s a comfort to those allocated next to nothing by the global economy to know that at least by Pareto’s lights the economy is an ‘efficient’ one. Pareto did more than most to take the ‘political’ out of political economy and help to birth a pseudo-scientific ‘economics’ with which the world has been saddled ever since. The (temporary?) eclipse of socialism, and even social democracy, with their theories of inherent class conflicts that vitiate any inherent win-win solutions to social trade-offs, has pushed us into a technocratic and solutionist world where issues like poverty and climate change are seen as technical matters of policy-making – but the incoherence of this view and the long-term troubles they’re storing up seem ever more apparent, as is nicely illustrated by Jason Hickel’s book The Divide: A Brief Guide to Global Inequality and its Solutions that I’m also working my way through at the moment. Hickel does a fine demolition job on the World Bank’s development indicators that I’ve been happily crunching numbers on in recent weeks, arguing that its claims about global poverty reduction that have become common coin nowadays are spurious. More on this soon, perhaps. Inasmuch as a good deal of the debate on my website of late has revolved around the slogan ‘it’s the soil, stupid’ I propose to move on to the contention that ‘it’s the politics, stupid’.
Anyway, Small Farm Future says embrace inherent conflict. Embrace trade-offs. Two up to Sowell.
Moving on to energy, I’ve been catching up with Chris Goodall’s carbon commentary blog. This passage caught my eye:
“Difficult not to be disappointed by the latest IEA figures on energy use. A decline in the rate of improvement in efficiency meant that global energy use rose 2.1% last year, twice the rate of 2017. Although renewables grew faster than any other energy source, they only provided about one quarter of the increase in overall demand. Oil use expanded, principally because of an increase in the sales of bigger cars, and coal burning increased, mostly for electricity generation. Coal use had fallen in the previous two years. Most tellingly of all, fossil fuels still provide 81% of global energy, a figure similar to the level of 3 decades ago.”
I was briefly tempted by Goodall’s book The Switch to entertain the notion of an emerging post-carbon energy revolution in the form of photovoltaics, but here perhaps he strikes a more realistic tone? On the other hand, David wrote under my last post about a once in a century paradigm shift currently occurring with renewables. I’m a mere amateur in these matters, but I’m interested in tracking the debate. Certainly, renewables are growing (I’m seeing lots of exponential-looking graphs about newly installed year-on-year renewables capacity in publications like the New Scientist, but I can’t quite shake off the feeling that an awful lot more of not very much is still not very much). If there’s a revolution occurring it’s not yet making it into gross global energy statistics. A few weeks back I noted Vaclav Smil’s marvellously fence-sitting observation of “two contradictory expectations concerning the energy basis of modern society: chronic conservatism (lack of imagination?) regarding the power of technical innovation, set against repeatedly exaggerated claims made on behalf of new energy sources”. Which side to jump?
And finally I’ve had various interesting communications about my post on the small farm as a ‘self-systemic’ entity – some positive, some negative. Thanks to everyone who’s contributed, even if I was less gracious than I might have been in response to some of the more negative comments. I think I failed to convey clearly enough exactly what I wanted to in that post. So I’m going to have another go at defining the small farm soon…when I get a break from the farming. In the meantime my working definition of a small-scale farmer is someone who’s too busy farming to write blog posts about how to define the small farm.
1. Rosset, P. & Altieri, M. 2017. Agroecology: Science and Politics. Fernwood Publishing.
2. Badgley, C. et al. 2007. Organic agriculture and the global food supply. Renewable Agriculture and Food Systems. 22, 2: 86-108.
3. Van Der Ploeg, Jan Douwe. 2013. Peasants and the Art of Farming. Fernwood Publishing.
4. Denison, F. 2012. Darwinian Agriculture. Princeton UP.
5. Crews, T. et al. 2015. The strong perennial vision: a response. Agroecology & Sustainable Food Systems 39: 500-15.