John Richard Krebs

Nota: Este archivo abarca los artículos publicados por el autor desde el 1 de Marzo de 2008. Para fechas anteriores realice una búsqueda entrecomillando su nombre.

GM*: genetically modified

As you leave Oxford station heading for London, there is an Oxfam advert that says: “Thanks to rising prices, some people can't afford fuel. Rice, bread, stuff like that.”

In the past 12 months there has been a sharp reversal of the 30-year trend of steadily declining global food prices. It has been called the “silent tsunami” and experts agree on three things. First, price increases were driven by a complex mix of factors including rising oil prices, the switch to biofuels, increased demand in China, poor harvests in Australia and commodity market speculation. Secondly, the steep and sudden increases are temporary, because farmers will increase output in response.…  Seguir leyendo »