Researchers at the University of California released a study today indicating that rat poisons increasingly pose a significant risk for California’s imperiled Pacific fishers, small, forest-dwelling mammals that are protected under the California Endangered Species Act. The study shows that increasing numbers of fishers are being exposed to, and dying from, greater varieties of rat poisons, or rodenticides, found at illegal marijuana farms. It also affirms reports and data from across the state that rodenticides continue to poison and kill numerous California wildlife species. 

“These poisons are silently killing our country’s most majestic wildlife by indiscriminately causing animals to literally bleed to death from the inside out,” said Jonathan Evans, environmental health legal director at the Center for Biological Diversity. “It’s time to ban these poisons from the market to protect fishers, bald eagles, great horned owls and kit foxes from a painful, gruesome fate.”

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A new study to be published online November 5 in the American Journal of Psychiatry casts a shadow on light therapy's status as the gold standard for treating SAD, or seasonal affective disorder. 

While the treatment was effective at addressing acute episodes of SAD, a SAD-tailored version of cognitive-behavioral therapy (CBT) was significantly better at preventing relapse in future winters, the study found. Led by University of Vermont psychology professor Kelly Rohan, the research initiative, funded by a $2 million grant from the National Institute of Mental Health, is the first large scale study to examine light therapy's effectiveness over time. 

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Annual snow accumulation on West Antarctica’s coastal ice sheet increased dramatically during the 20th century, according to a new study published today (Wednesday 4 November) in the American Geophysical Union journal Geophysical Research Letters. The last three decades saw more snow build up on the ice sheet than at any other time in the last 300 years.

The research gives scientists new insight into Antarctica’s ice sheet. Understanding how the ice sheet grows and shrinks over time enhances scientists’ understanding of the processes that impact global sea levels.

The new study used ice cores to estimate annual snow accumulation from 1712 to 2010 along the coastal West Antarctic. Until 1899, annual snow accumulation remained steady, averaging 33 and 40 centimeters (13 and 16 inches) water, or melted snow, each year at two locations.

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La tierra acaba de tener el más caluroso período enero - septiembre de la historia, dijo la Organización Meteorológica Mundial de las Naciones Unidas (OMM), añadiendo que las temperaturas medias del aire y del mar en septiembre registran el mayor aumento superior a la media mensual de 136 años.

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El área del agujero de ozono en el antártico, este 2015, es más grande y se formó más tarde que los agujeros anteriores, dijeron los científicos de la NASA y la Administración Nacional Oceánica y Atmosférica (NOAA).

El 2 de octubre de 2015 el agujero de ozono se expandió a su máximo de 28,2 millones de kilómetros cuadrados (10.9 millones de millas cuadradas), un área más grande que el continente de América del Norte. A lo largo de octubre el agujero mantuvo ese tamaño y estableció muchos...

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Germany's Volkswagen said Tuesday (3 November) an internal probe had found that 800,000 more vehicles showed "inconsistencies" on carbon dioxide emissions, including the first petrol engines.

Among the engines affected are 1.4, 1.6 and 2.0 litre motors of VW, Skoda, Audi and Seat vehicles, said a VW spokesman, adding that these cars had been found to be releasing more of greenhouse gas CO2 than previous tests had shown.

At least one petrol engine is concerned, the company said.

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