NASA's Dawn mission captured a sequence of images, taken for navigation purposes, of dwarf planet Ceres on May 16, 2015. The image showcases the group of the brightest spots on Ceres, which continue to mystify scientists. It was taken from a distance of 4,500 miles (7,200 kilometers) and has a resolution of 2,250 feet (700 meters) per pixel.

"Dawn scientists can now conclude that the intense brightness of these spots is due to the reflection of sunlight by highly reflective material on the surface, possibly ice," Christopher Russell, principal investigator for the Dawn mission from the University of California, Los Angeles, said recently.

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A new White House plan to promote the health of bees and other pollinators calls for boosting research into ongoing population declines—and potential solutions. The plan, released yesterday, also recommends numerous measures to address growing concerns about the threat that bees, birds, butterflies, and other pollinators face from multiple factors, including pathogens, pesticides, climate change, and habitat loss. By addressing scientific knowledge gaps, the research should make the plan’s suggested measures much more effective, the report says.

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Between 10 and 30 percent of all prescription and over-the-counter drugs sold are left unconsumed, according to a State of Washington report, and all those leftover medications pose significant risks to public health and the environment. Drugs that are flushed down the toilet or tossed in the trash can – rather than properly disposed of – can end up in oceans and waterways, threatening both marine life and human health. Meanwhile, many individuals don’t get rid of their unused medications at all; they simply store the drugs in their medicine cabinets – a practice that can lead to drug misuse and abuse.

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Nuevos datos de satélites de la NASA confirman lo que otras investigaciones han demostrado, a saber, que el agujero en la capa de ozono parece estar cada vez más pequeño.

El ozono es crucial para nosotros aquí en la Tierra, ya que nos protege de algunas de las radiaciones más perjudiciales del sol. En la década de 1980 se confirmó que una gran cantidad de productos químicos como los Cloro Fluoro Carbonos (CFCs) que habíamos estado utilizando en la industria y en particular en los aerosoles, había estado consumiendo la capa de ozono, creando varios agujeros, incluyendo una preocupante gran agujero sobre el Ártico. A largo plazo el uso de CFCs amenazó con destruir este escudo vital completamente si no actuamos.

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Turkey is planning to double its coal power capacity in four years, the third largest investment in the polluting fossil fuel in the world, health campaigners have warned.

The Health and Environment Alliance (HEAL) today called on the European Union to promote sustainable development in Turkey and end lending for new coal projects.

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Investigadores de la Universidad de Houston han determinado que el cambio climático, en forma de una brisa marina más fuerte, ha resultado en temperaturas más cálidas del suelo, contribuyendo a la caída de las concentraciones de ozono en el área de Houston.

Robert Talbot, profesor de química de la atmósfera, dijo que también esto debe ser cierto para las regiones costeras a nivel mundial.

Los investigadores describen sus hallazgos en un artículo publicado esta semana en la revista Ambiente. Además de Talbot también incluyen al primer autor Lei Liu, estudiante de doctorado y Xin Lan del post-doctorado.

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