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| Another human footprint in the ocean: Rising anthropogenic nitrate levels in North Pacific Ocean Posted: 27 Nov 2014 06:23 PM PST Human-induced changes to Earth's carbon cycle -- for example, rising atmospheric carbon dioxide and ocean acidification -- have been observed for decades. However, a new study has shown that human activities, in particular industrial and agricultural processes, have also had significant impacts on the upper ocean nitrogen cycle.       |
| Genomes of malaria-carrying mosquitoes sequenced Posted: 27 Nov 2014 06:23 PM PST Scientists have sequenced the genomes of 16 Anopheles mosquito species from around the world. Anopheles mosquitoes are responsible for transmitting human malaria parasites that cause an estimated 200 million cases and more than 600 thousand deaths each year. However, of the almost 500 different Anopheles species, only a few dozen can carry the parasite and only a handful of species are responsible for the vast majority of transmissions.  |
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