News tagged with levels

Stem cells make similar decisions to humans

Scientists at the University of Copenhagen have captured thousands of progenitor cells of the pancreas on video as they made decisions to divide and expand the organ or to specialize into the endocrine cells that regulate ...

Mar 25, 2015
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Mercury pollution danger for arctic ivory gulls

A paper in Proceedings of the Royal Society B today says that mercury levels in arctic ivory gulls have risen almost 50 fold over the last 130 years. Scientists think this increase in mercury pollutants could ...

Mar 20, 2015
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India's fast-growing cities face water crisis

Ranbir Singh still remembers when the wells in his village on New Delhi's southwestern edge were filled with sweet-tasting water and livestock drank from the small ponds that dotted the area.

Mar 20, 2015
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Arctic sea ice hits record low

Arctic sea ice has reached its lowest winter point since satellite observations began in the late 1970s, raising concerns about faster ice melt and rising seas due to global warming, US officials said Thursday.

Mar 19, 2015
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