Cuando el dueño de la tienda de abastos Melchor Villanueva se inclina sobre el mostrador puede ver todo su mundo bajo sus manos. El vidrio del mostrador muestra fotos de su comunidad: jóvenes futbolistas, jóvenes vestidas con sus mejores galas para sus fiestas de quince años, y pescadores con pañuelos contra el sol. Muchos descienden de los supervivientes del huracán Janet, que en 1955 mató a una tercera parte de la población de Xcalak, una ciudad costera en la frontera de México con Belice, y destruyó las plantaciones de cocoteros del pueblo. “Acá dejó solo arena”, recuerda Villanueva. Continue reading Ensayo y error en un pueblo playero de México
Category Archives: Outlets
Big Data vs. Bad Air
In mid-October 2016, officials from China’s Ministry of Environmental Protection counted five illegal trash-burning sites and hundreds of thousands of vehicles exceeding emission standards in Beijing alone. For the first time since last winter’s pollution high season, city officials issued a yellow air-quality alert, which required shutting down power plants and reining in Beijing’s frenetic factories and road traffic. If this winter is anything like past winters, the city will have to pull out the yellow card again—and may even have to reach for its red card.
Read the rest of this news story in the January issue of IEEE Spectrum or the updated online version: [html] [pdf].
Europe’s New Satellite System Will Improve Your Phone
Galileo, a global navigation satellite system that will reach more places and work more precisely than today’s GPS services, is now available for free public use. When it is complete, expected by 2020, Galileo will have taken two decades and an estimated $10 billion to build. But the system, created by the European Union, will make your phone run better and offer new possibilities for both corporate and government users.
Continue reading Europe’s New Satellite System Will Improve Your Phone
How a New Middleman Might Help Balance Electricity Grids
A few years ago almost two thousand bold households on the Danish island of Bornholm joined a surge pricing experiment run by their electricity utility. It was supposed to empower the utility and consumers with a simple, direct market (“The Smartest, Greenest Grid,” IEEE Spectrum, April 2013).
The EU-funded project, called EcoGrid, won widespread buy-in from residents, who could also earn small payoffs when they reduced demand. Yet researchers reported last year that they could reduce demand by only 1.2 percent of peak load, despite early predictions of up to 20-percent reductions for so-called virtual power plants. The market model was missing something. Continue reading How a New Middleman Might Help Balance Electricity Grids