Clean water and indigenous knowledge

SciDev.net reports that prickly pear cactus (Opuntia spp) can be used in a simple process to remove 98% of bacteria from dirty water. 1 That would be good news for poor people who may be surrounded by prickly pears, but lack clean water. Alas, (some) poor people don’t want pure water.

“Stomach and intestinal infections are considered a way of cleansing the body, and are not conceived as diseases.”

Oh the dilemma. Preserve their indigenous knowledge, or offer them better health? 2

Strangely, among other communities, on another continent, indigenous knowledge of the water purifying properties of Moringa seeds is just plain confused. Some people know all about it, others believe that more than three Moringa trees are “a source of misfortune that brings poverty and death”. But not from water-borne diseases, perhaps.

And, in the industrial corner …

Everyone’s jumping into the industrial versus organic fray (again) with most of the usual suspects making most of the expected noises. One contribution, though, did surprise me somewhat. I have a lot of time for Matt Ridley’s writing, and I’m looking forward to his new book The Rational Optimist. At his blog devoted to the book he has a post on “organic’s footprint” that is either deliberately misleading or else accidentally thoughtless.

One foolishness that a commenter there has already picked up on is this:

Given that … it takes just about the same calories of fossil fuels to get an organic lettuce from a Californian farm to a plate in New York — 4,600 versus 4,800 (numbers from Michael Pollan’s Omnivore’s Dilemma) — can we please have a little less preaching of organic’s holiness?

Talk about a straw man. Who, seriously, imagines that an organic lettuce from California is a good substitute for an industrial lettuce from California in New York? No-one I know, apart maybe from some organic marketeers, who are no better than marketeers anywhere.

Ridley’s main point seems to be that cereal yields per hectare have risen steadily since the 1960s.

That remarkable achievement is mostly down to the fact that most farmers now get extra nitrogen straight from the air, via ammonium factories, rather than from plants, dung and dead fish — the `organic’ way.

If the world was fed with organic food, it follows, we would need to cultivate or otherwise exploit far, far more land to get the plants, dung and dead fish to produce the same amount of food. As I submit to being preached at by organic farmers about their virtue, this fact keeps creeping into my head. Wholly organic farming means no rainforests or it means hunger and high food prices.

A phalanx of straw men. Never mind about the energy needed to get that nitrogen from the air. He could perhaps persuade me to be optimistic about that, even though things aren’t moving too fast on that front. Water? Other energy needs? Why not go the whole rational hog, and press for the Müller solution. Move all agriculture to where it does best, and give it what it needs to deliver. You could grow all the food that 12 billion people would need, with double today’s meat consumption, in a fraction of the area currently occupied by agriculture (see maps in this paper).

I’m not going to dissect Ridley’s post point by point. It isn’t worth it, and Gary has already provided the excellent synthesis that Luigi craved. To quote:

Good farmers are never “organic”. They also aren’t conventional as they are characterized by “organic” growers. The caricatures are devised by “organic” advocates to demonize other growers in the hope of somehow elevating themselves. Good farmers are concerned with producing good food and doing good land management so that they and their descendants can earn a living farming in future. The production methods they use are evaluated by that standard rather than a set of taboos or ungrounded regulations. They are realists who will use any available method that helps them achieve their objectives.

To which I would add that it isn’t only the organic farmers who demonize others. Bagmen for conventional agriculture are just as capable of demonization, as Ridley so eloquently demonstrates. But I’ll give Gary the last word, for now.

There’s a lot of room for improvement. We can get very much better at agriculture. The sterile conflict between “organic” and other growers does not help. We need to move beyond organic to a more reality based agriculture that is grounded in knowledge rather than superstition.

Industrial vs Organic, seconds out, round 654

Jeremy’s brief post on Prof. Robert Paarlberg’s love note to industrial agriculture in Foreign Policy has generated quite a heated discussion. That’s what we like to see, so do join in if you haven’t done so already. Foreign Policy has also published something of a rebuttal. And, coincidentally (or maybe not — but Paarlberg is not mentioned) so has mongabay.com. Thesis. Antithesis. Still no sign of that pesky synthesis.

LATER: Marion Nestle has also just published something relevant to this somewhat sterile debate, though in response to the “superweed” story in the NY Times that’s been going viral rather than in direct response to Paarlberg.

Bob is healthy

Via Lois Englberger comes news of Bob Festival Day in the Marshall Islands last Saturday, 24 April. Bob is not some guy, but rather the Pandanus tree. Lois shared Lydia Tibon’s description of the event, which we reproduce below. Pandanus is very important throughout the Pacific, where it has multiple uses. Lois is particularly interested in its beta carotene content. Our thanks to both her and Lydia.

KIJLE (Kora in Jiban Lolorjake Ejmour), meaning “women assisting to promote good health,” participated. We wanted to remind everyone that Bob is better than eating processed foods.

As you can see, the table, chairs, everything hanging and inside our float were pandanus-made. Our kids, grannies were chewing and throwing bobs to everyone. Our billboard message was to promote both education and health.

Our motto is Bob Dikdik Kejadikdrik, the translation is something like “Bob is so fruitful.” It produces so much, it gives us so much knowledge that we use the leaves by weaving the mats, making hats, use to drink medicines, also gives Vitamin A that is very rich to protect our skin, vision, bones and many more….

Our T/shirt that day was “Bob is healthy.”

Gulf oil spill not much of a threat to one crop wild relative

The Gulf oil spill is threatening some Globally Important Bird Areas, according to the LA Times:

And other protected areas too. Unfortunately, we don’t have a similar map for crop wild relatives, at least not just yet, at least not so easily available. So it’s hard to estimate the overall threat posed by the oil spill on these genetic resources — which are arguably of greater importance than most birds, but there you go. What we can do — just about — is look at the distribution of individual species. And that is what our friend Julian at CIAT has done for a wild bean, Phaseolus polystachyus.

Not in any particular danger, though one or two coastal populations may be affected, I suppose. But I just wonder if one day the LA Times will publish a map showing the Globally Important Crop Wild Relative Areas threatened by some calamity or other.