News tagged with calcium levels

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Calcium loss turning lakes to 'jelly'

New research on a number of Canadian lakes show that historical acid deposits as a result of industry have greatly reduced calcium levels in the water - dramatically impacting populations of calcium-rich ...

Nov 18, 2014
4.2 / 5 (29) 5

High-CO2 world threatens seabed life

Environmental change is transforming many parts of the north-east Atlantic seabed, and according to a newly-published paper this will almost certainly get worse in the coming decades.

Jun 20, 2014
3.3 / 5 (7) 0

Effect of ocean acidification may not be so dire

(Phys.org) —Marine scientists have long understood the detrimental effect of fossil fuel emissions on marine ecosystems. But a group led by a UC Santa Barbara professor has found a point of resilience in ...

Apr 15, 2013
5 / 5 (13) 16 | with audio podcast

Sea urchins cope with rising CO2 levels

(Phys.org) —Increasing levels of carbon dioxide (CO2) in the atmosphere are causing oceans to become more acidic. This situation poses a threat to marine organisms with shells made of calcium carbonate, ...

Apr 09, 2013 report
3.5 / 5 (6) 18 | with audio podcast

The secret of nanoparticle packing in cement

Cement production is responsible for 5% of carbon dioxide emissions. If we are to invent a "green" cement, we need to understand in more detail the legendary qualities of traditional Portland cement. A research group partly ...

Dec 20, 2012
3.3 / 5 (3) 0

New bacterium forms intracellular minerals

A new species of photosynthetic bacterium has come to light: it is able to control the formation of minerals (calcium, magnesium, barium and strontium carbonates) within its own organism. Published in Science on Apr ...

May 11, 2012
5 / 5 (3) 0 | with audio podcast