An international team of scientists, led by the University of Leeds, has quantified the relationship between natural sources of particles in the atmosphere and climate change.

Their study, published today in Nature Geoscience, shows that the cooling effect of natural atmospheric particles is greater during warmer years and could therefore slightly reduce the amount that temperatures rise as a result of climate change.  

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En todo el mundo, Estados Unidos es uno de los mayores emisores de gases de efecto invernadero. La administración de Obama comenzó los esfuerzos para reducir esos números mediante el aumento de los estándares de economía de combustible de vehículos en 2011 y con sus propuestas de Plan de energía limpia en 2015.

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The arrival 36 years ago of a strange bird to a remote island in the Galápagos archipelago has provided direct genetic evidence of a novel way in which new species arise.

On Nov. 23 in the journal Science, researchers from Princeton University and Uppsala University in Sweden report that the newcomer belonging to one species mated with a member of another species resident on the island, giving rise to a new species that today consists of roughly 30 individuals.

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