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Science News for November 27, 2014


Another human footprint in the ocean

A recent study revealed a significant increase in anthropogenic nitrate levels in the North Pacific Ocean over the past 30 years, primarily due to enhanced atmospheric deposition. This shift in nutrient availability may favor certain marine organisms and alter the base of the marine food web.

SourceUniversity of Hawaii at Manoa·JournalScience·DateNov 27, 2014

Ancient algae provides clues of climate impact on today's microscopic ocean organisms

A recent study by University of Southampton researchers found that ancient marine algae, such as coccolithophores, experienced reduced growth and skeletal structure changes in response to climate warming and ocean acidification during the Paleocene Eocene Thermal Maximum (PETM). The research provides a long-term perspective on the impa...

SourceUniversity of Southampton·JournalNature Communications·DateNov 27, 2014

Stroke damage mechanism identified

A team of researchers discovered a mechanism linked to brain damage after stroke and found that removing it reduces damage. They identified an ion channel called TRPM2, which opens in the presence of reactive oxygen species, causing neuronal cell damage.

SourceUniversity of Leeds·JournalCell Death and Disease·DateNov 27, 2014