Semana del 1/5/11
Querido DiálogoEcológico: ¿Cuál es la diferencia nutricional entre la zanahoria que comía en 1970 y la que como hoy? He oído que queda muy poca nutrición. ¿Es verdad?
Querido DiálogoEcológico: Leí una historia desgarradora de un oso polar que nadó 400 millas con su cachorro a la espalda en busca de un témpano de hielo para descansar. Sobrevivió, pero su cachorro no. ¿Qué se puede hacer para salvar estas magníficas criaturas? ¿Es ya demasiado tarde
Timber Thefts
Dear EarthTalk: I heard that timber thefts are increasing across the country. Why would people steal timber and is it a particular kind for a particular use?
Hydrogen Fuel Cell Cars
Dear EarthTalk: Not long ago we were reading a lot about hydrogen’s role in a clean energy future, with cars transitioning from gasoline-powered engines to hydrogen-powered fuel cells. Where does hydrogen fit now in the mix with electric cars now coming on so strong?
Lessons Not Learned
Many shortcomings led to BP Deepwater Horizon oil spill: lax regulation, including inadequate cement & a poorly coordinated response…
Outshining the Stars
Outshining the Stars: Excessive Night Lighting Has Some Communities Laying Down the Law. What can we do to reduce light pollution at night?
Putting Landfill Gas to Good Use
Landfills are a Potent Source of Methane—And, Potentially, Energy…
Pop Those Corks
Wine corks have a lot of reuse potential if they’re sent to an organization like ReCork, which transforms them into flooring tiles, building insulation, automotive gaskets, and, now, sandals.
Hospital Waste Could Be Slimmed Down
U.S. hospitals produce over 4 billion pounds of waste a year—second only to the food industry. A few simple steps could help cut those numbers dramatically without compromising safety or health.

