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Diurnal tracking of anthropogenic CO 2 emissions in the Los Angeles basin megacity during spring, 2010
Measuring variations of δ18O and δ2H in atmospheric water vapour using laser spectroscopy: an instrument characterisation study
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AN033: Picarro’s New Flux Instrument Captures CO2, CH4 & H2O Fluxes by Measuring Concentrations at 10 Hz with the Best Precision and Lowest Drift
AN032 - Induction Module-CRDS analysis of water isotopes in cheese II: Rapid method to discriminate cheese sources
AN031 - Induction Module-CRDS analysis of water isotopes in cheese I: Water in cheese retains its environmental isotopic signature

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Stable and Precise Carbon Monoxide Measurements with the Picarro G2302
Reduced drift, high accuracy stable carbon isotope ratio measurements using a reference gas with the Picarro G2101-i gas analyzer
Accurate Stable Carbon Isotope Ratio Measurements in Rapidly Varying CO2 Concentrations

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Fair Trade Cocoa. Unfair on Children

Fair Trade Cocoa. Unfair on Children
Home › Blogs › Iain Green's blog

Fair Trade Cocoa. Unfair on Children

January 21, 2012 - 6:47pm — Iain Green
Cocoa suppliers

Bravo to CNN for a thought provoking program on cocoa farm child labor in the Ivory Coast. The missing component from the discussion is that there is a solution that would go much further than the current crop of toothless fair trade ‘certifications’. Stable isotopes do a great job of distinguishing cocoa grown in different regions (see data inset). Companies and scientists can argue that the resolution isn’t down to the farm level, but as the cocoa becomes more homogenized by region, the resolution is perfect. That’s where testing is important, where smuggling can be stamped out and where Child Labor laws become enforceable.

Currently, if on-the-ground inspectors come across a farm that is employing child labor (as defined by the International Labor Organization or whatever version applies) there is very little actual consequence.  The farmer’s crop is not allowed to be sold. That means nothing. Smuggling crops from one locale to another to be incorporated into aggregated shipments isn’t new. And, it’s certainly not new to cocoa or to the Ivory Coast, especially.

However, by fingerprinting the product coming from a local buyer of exporter, it becomes significantly riskier for that entity to incorporate a product of dubious provenance into their stock. The change in isotope values for all but the smallest and uneconomical smuggling operations would be noticed by the buyer with the risk that the contract be voided. And, with the current heightened awareness of using bad actors, there’s little chance another top food company is going to pick that contract up.

The on-the-ground inspectors would be tasked with mapping out the farm-to-local buyer chains (as is happening anyway) and they would be able to flag a local buyer that was buying from a child labor farm. And if stable isotope testing prevented that farm’s crop from reaching another buyer unnoticed, there is little else for that farmer to do but change.

As we’ve described, the tests are fast, quick and easy. You can run about 150 tests a day, so it would take a couple of weeks to a month for a company to map out its whole cocoa supply chain. You can a run a sample for about $1. Isn’t that a minor amount in the fight against child labor?

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