An hour outside of Mexico City, the taxi turns off the main road, and the noise and bustle of the highway fade away. Past a steel gate and a white guardhouse, we enter the well-tended grounds of the International Center for the Improvement of Maize and Wheat, known by its Spanish acronym, CIMMYT (pronounced SIM-it). It's a farm masquerading as a small United Nations. An array of flags pays tribute to the countries that fund the organization's work: creating better crops for the developing world's poor farmers.

Select from the choices above to read the entire article.