According to a new study, 99% of plastic waste that enters the ocean cannot be located. While initially hearing that there's less plastic in the ocean than we believed sounds like great news, it's actually a frightening prospect. After all, if the plastic isn't in the ocean ... where is it going?! A team from the University of Western Australia spent a couple of years sailing around the world in five vessels hoping to accurately record just how much plastic is actually in the ocean. Although researchers expected to discover millions of tons, they were surprised to calculate that they only calculated about 40,000 tons of plastic floating on the surface.
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Parece que cada vez más cantidad de los pescados disponibles en el supermercado y en los restaurantes es de granja. ¿Es esto bueno o malo? Probablemente un poco de ambas cosas. La crÃa de peces en las piscifactorÃas no afecta a los peces silvestres en gran medida, pero las granjas de peces deben estar bien situadas y bien dirigidas para evitar problemas. ¡No son ecosistemas naturales!
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Scientists have speculated for centuries about comets. Why do the become visible on an irregular interval? Why does the tail always point away from our sun? What are comets made of? Are they balls of ice, or more like an asteroid?
Now NASA may finally get some concrete answers with a current mission that will land on a comet later this year!
Comet 67P/Churyumov-Gerasimenko is releasing the Earthly equivalent of two glasses of water into space every second. The observations were made by the Microwave Instrument for Rosetta Orbiter (MIRO), aboard the European Space Agency's Rosetta spacecraft on June 6, 2014. The detection of water vapor has implications not only for cometary science, but also for mission planning, as the Rosetta team prepares the spacecraft to become the first ever to orbit a comet (planned for August), and the first to deploy a lander to its surface (planned for November 11).
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As part of the President's Climate Action Plan – Strategy to Reduce Methane Emissions, the U.S. Environmental Protection Agency (EPA) is proposing updates to its air standards for new municipal solid waste (MSW) landfills. These updates would require certain landfills to capture additional landfill gas, which would reduce emissions of methane, a potent greenhouse gas, and help further reduce pollution that harms public health.
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Forget marsupials, the world's strangest group of mammals are actually those in the Afrotheria order. This superorder of mammals contains a motley crew that at first glance seems to have nothing in common: from the biggest land animals on the planet—elephant—to tiny, rodent sized mammals such as tenrecs, hyraxes, golden moles, and sengis. But there's more: the group even includes marine mammals, such as dugongs and manatees. Finally, they also include as a member the most evolutionary-distinct mammal on the planet: the aardvark. While these species may seem entirely unrelated—and many were long shuffled into other groups—decades of genetic and morphological research now point to them all springing from the same tree. Last week, though, scientists announced the newest, and arguably cutest, member of Atrotheria: the Etendeka round-eared sengi.
Described in the most recent edition of the Journal of Mammology, the Etendeka round-eared sengi (Macroscelides micus) was discovered in the northwest corner of Namibia.
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