Hotels across the globe are increasingly encouraging guests to embrace green practices. Yet while guests think they are supporting the environment by shutting off lights and reusing towels, they may in fact be victims of "greenwashing," a corporation's deceitful practice of promoting environmentally friendly programmes while banking the extra profits.

Greenwashing practices, such as a sign that reads "save the planet: re-use towels," coupled with claims of corporate social responsibility, have soiled the trust of American consumers who are increasingly recognizing hotels' green claims may be self-serving. This could cause hotels to lose valuable repeat customers.

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Can you imagine a drug that would make it easier to learn a language, sharpen your memory and help those with dementia and Alzheimer’s disease by rewiring the brain and keeping neurons alive?

People with a dementia such as Alzheimer's disease lose their memory when brain cells shrink and die because connections can no longer transfer information.

New Rutgers research published in the Journal Neuroscience found that a drug – RGFP966 – administered to rats made them more attuned to what they were hearing, able to retain and remember more information, and develop new connections that allowed these memories to be transmitted between brain cells.

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Los conservacionistas están celebrando la noticia de que las tortugas marinas en peligro de extinción anidan en número récord en el sureste, de Carolina del Norte a la Florida, lo que ofrece una señal prometedora de que los esfuerzos para ayudar a protegerlos están dando sus frutos.

La semana pasada, los investigadores de la Universidad de Florida Central (UCF) que estudian las tortugas marinas verdes en el Refugio Nacional de Vida Silvestre Archie Carr (Archie Carr National Wildlife Refuge) declararon que por segunda vez en los últimos tres años, se están estableciendo récords después de contar hasta 12,026 nidos.

"Esta es realmente una historia de retorno", dijo Kate Mansfield, profesora asistente de la UCF de biología y lidera el Grupo de Investigación de la Tortuga Marina, quienes supervisan las tortugas durante su temporada de anidación que dura desde el 1 de mayo al 1 de octubre.

El refugio, que se estableció en 1991, se ha convertido en un refugio vital para las tortugas marinas. De acuerdo con el Servicio de Pesca y Vida Silvestre de Estados Unidos, ésta es el área más importante para la anidación de la tortuga verde en América del Norte, pero no son las únicas beneficiadas.

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For wild sockeye salmon, the trip upriver from the ocean to their spawning grounds is fraught with peril and hardship. But quantifying exactly how obstacles along the way, fluctuations in water temperature and other factors impact fish survival has long eluded researchers. New advances in biological sensor tags are now allowing scientists to precisely measure animals’ energetics, their interactions with humans, and their responses to rapidly changing environments.

In 2014, for example, Nicholas Burnett and colleagues used accelerometer tags to measure how salmon needed to swim in order to traverse a dam in the Seton-Anderson watershed of British Columbia, Canada and how likely they were to survive the remainder of their journey. They found that when salmon resort to strenuous anaerobic swimming, they were significantly more likely to die days or even hours later.

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De los 250 millones de automóviles y camiones en las carreteras de Estados Unidos, la retirada inminente de Volkswagen implicará sólo un medio millón de ellos. Pero el escándalo de las emisiones de VW está recibiendo una atención enorme porque muchos de los clientes de la compañía se sienten engañados. Ahora los clientes están sopesando lo que se necesita para que se sientan bien de nuevo.

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