ENN
Environmental News Network -- Know Your Environment
Spring has arrived in Europe with mild temperatures and sunshine. Where just a few weeks ago the ground was frozen and partly covered in snow and ice, it is now thawing. This doesn't only have an impact on the flora and fauna. Thawing results in soil and the groundwater at airports being impacted by chemicals, which are contained in melt water. The reason: Airports have to use de-icing agents during the winter, which end up on unpaved areas and infiltrate into the soils during snowmelt.
La capacidad para suministrar electricidad continua para refrigeración es uno de los elementos más importantes del sistema de distribución de alimentos hoy en día.
El uso de la energía generada en base a combustibles fósiles para refrigerar y congelar los alimentos durante todo el día produce mucha contaminación: las emisiones de carbono y gases de efecto invernadero que están calentando el clima a escala global, así como las emisiones de una gama de productos químicos potencialmente tóxicos que agotan la capa de ozono y acaban con nuestras corrientes de agua y el suelo.
A new study using evidence from a highly detailed ice core from West Antarctica shows a consistent link between abrupt temperature changes on Greenland and Antarctica during the last ice age, giving scientists a clearer picture of the link between climate in the northern and southern hemispheres.
Greenland climate during the last ice age was very unstable, the researchers say, characterized by a number of large, abrupt changes in mean annual temperature that each occurred within several decades. These so-called “Dansgaard-Oeschger events” took place every few thousand years during the last ice age. Temperature changes in Antarctica showed an opposite pattern, with Antarctica cooling when Greenland was warm, and vice versa.
The halving of alcohol-fuelled car crashes since the mid-1980s boosted US economic output by $20 billion, increased national income by $6.5 billion, and created 215,000 jobs in 2010, reveals an analysis of the economic impact of drink-driving, published online in the journal Injury Prevention.
In a bid to estimate the impact of alcohol-fuelled car crashes on the US economy in 2010, the researchers calculated the economic gains (and losses) resulting from the substantial fall in this type of road traffic collision since 1984-6 and the monetary costs directly incurred by employers and consumers in 2010.
Una nueva batería de alto rendimiento de “aluminio-litio”podría ser el avance técnico necesario para impulsar la toma de control de la energía renovable. Es seguro, utiliza abundantes materiales de bajo costo, se recarga en un minuto y soporta muchos miles de ciclos de recarga.
Si esta nueva batería está a la altura de las expectativas, podría impulsar un nuevo capítulo en la toma de control de la oferta de energía renovable del mundo.
Científicos de la Universidad de Stanford han inventado la primera batería de aluminio de alto rendimiento que es de una carga rápida, de larga duración, de bajo costo y segura.
More than a third of global greenhouse gases (GHGs) come from agriculture and a new theory suggest human can reverse global warming by sequestering several hundred billion tons of excess CO2 through regenerative, organic farming, ranching and land use.
