survey says!

Feed the world sustainably by 2050? Yes, we can! 5

Adding a bit more data to food system reformers’ arguments, a new study led by Germany’s prestigious Potsdam Institute for Climate Impact Research takes on the question of whether we can “feed the world” while preserving the planet come 2050. Short answer: Yes!

Researchers modeled various agricultural styles, growth patterns, and diets. Here’s what they say:

Despite pushes from agribusiness to intensify farming to feed a growing global population that is expected to reach over nine billion by 2050, the researchers found that a diet equivalent to eating meat three times a week would allow forests to remain untouched, animals to be farmed in free-range conditions, and greener farming methods to be used.

With as many people obese in the West as malnourished in poor countries—roughly a billion of each—distributing protein more fairly is also an opportunity to tackle global health problems, the report points out. 

Oh, didn’t I mention that we’d have to eat a bit less meat? But at least there’s no need to go all Jonathan Safran Foer, so that’s something, right? There’s also one other slight adjustment we’d need to make. I won’t hold you in suspense for too long as to what it is. But believe me when I say that House Ag Chair Rep. Collin Peterson (D-Minn.) won’t like it at all:

[F]eeding the world in a planet-friendly way means there will be little room to grow bio-fuel crops for cars. Feeding people must come first.

People before cars? How un-American. Ah, well. Can’t win ‘em all!

But seriously, this study made a real attempt to model all production styles and wasn’t simply focused on finding a way to make sustainable practices win.  And even if skepticism remains, as it no doubt will, this study provides some solid evidence that the knee-jerk claim by so-called “realists” that sustainable practices simply can’t address the needs of a growing population is, well, flat out wrong. In fact, the study suggests that if there is an unrealistic side in this debate, it’s not the reformers’. Expecting the world to adopt to high meat-consumption patterns of Western countries appears to be impractical at best:

Global adoption of the ‘western high meat’ diet is only probably feasible with massive land use change. This would mean that an additional three million km2 of land would be needed for agricultural production, expanding into grazing land, with potential for serious detrimental environmental consequences. It would rely on a highly optimistic 54 percent increase in crop yields in line with the highest possible FAO forecasts. This approach would also rely on confining the vast majority of farm animals in inhumane intensive production systems.

What’s most useful about this study is that it throws down some markers. Sure, we can try to push our current unsustainable system full-bore until 2050. But we really will use up the planet and probably fail in the attempt. It’s worth asking yourself: Is steak a mere three times a week and an electric car in your garage really too high a price to pay for a sustainable future for everyone?

Tom is a media and technology professional who thinks that wrecking the planet is a bad idea. He twitters madly and blogs here and at Beyond Green about food policy, alternative energy, climate science and politics as well as the multiple and various effects of living on a warming planet.

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  1. wolfger Posted 3:44 pm
    11 Nov 2009

    Amazing! On the same day at Grist, this article telling us there's no food problem for the 9 billion of us, if we just change our ways of agriculture and then the Lester Brown article "The Copenhagen Conference on food security" telling us that it's all about the glacial melt water, so important to irrigationl agriculture. Are we to believe a simulation that may not have included our diminishing water resources or are we to believe what we actually are seeing in glacial melting? Optimists vs. pessimists?
    1. Matt Petryni Posted 7:33 pm
      11 Nov 2009

      Ha. Um, I fear you might be making the mistake of assuming all environmentalists think exactly the same way. In reality, there's a lot of different viewpoints among environmentalists regarding the issues we face, and about the ways to address them.

      The only thing we really agree on - as environmentalists - is that we do have the personal responsibility to ensure the survival of future generations by investing in the sustainability of our natural resources. How exactly we should go about adhering to our personal responsibilities is, well, a little more contentious.
  2. Tasermons Partner Posted 10:07 pm
    11 Nov 2009

    Really, we could do it tomorrow if we eliminated all the geo-political shitze and actually worked to produce food in the most efficient and sustainable manner possible regardless of cost or political wrangglin'.

    But alas, such facts of life are unlikely to go away anytime soon.
  3. Billhook Posted 6:05 am
    12 Nov 2009

    It seems a shame that so prestigious an authority as the Potsdam Institute should choose voluntarily to ignore the two great impacts bearing down on world agriculture,
    namely Peak Oil, and Climate Destabilization.

    One of the impacts of Peak Oil was well illustrated at a starting level last year by the outcome of $115/barrel oil, via natural gas feedstock prices, in multiplying the price of artificial fertilizer. Here in Wales, that is in a 'wealthy' highly 'developed' agricultural community, many farms simply didn't buy fertilizer because it wouldn't have paid its cost back, let alone made any profit.

    This is not the boon it might appear to non-farmers - switching from dependence on artificials to sufficiently mixed farming to yield sufficient dung and/or green manures for fertility is neither simple nor cheap nor quick.
    And many farming families worldwide need less than a year's production failing to become destitute or starved.

    Please note that this is just one of a host of the evidenced and predictable impacts of Peak Oil on agricultural production.

    With regard to the impacts of Climate Destabilization on agriculture, perhaps the most authoritative prognosis illustrating our prospects is from the IPCC, recently reiterated by Pachauri in the Yale-Environment-360 interview.
    The IPCC's forcast is that some African nations will lose 50% of their farm yields due to climate impacts (primarily drought) by 2020.
    That is just 10 years time, and half of their present produce lost.
    To put this in context, the two great famines of medaeval Europe that cut population severely arose from shortfalls of 10% to 15%.

    The Potsdam report is for 2050 and is addressing the projection of having to feed 9.0 billion people. I've yet to see any vaguely credible evidence that we'll get anywhere near 9.0 billion, since we patently lack the resources to do so.

    The pertinent questions for macro-scale agricultural planning are surely just how soon population will peak, and how low a decline rate can be sustained thereafter ?

    Regards,

    Billhook
  4. bailsout Posted 6:09 pm
    12 Nov 2009

    Hey, there's an elephant in the room. And it is us. And as long as we continue to believe that it is our manifest destiny to overpopulate and not begin to look for and plan to achieve an ideal population count that will make this planet more in harmony with the rest of its entities and ecosystems,we are stupid. Of course, was there ever a doubt? What would be the world's ideal population that could be nourished with organic agriculture and sustainable lifestyles?

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