Carbon Cycle in the Ocean

  A global cycle represents the path of an element as it moves through the spheres of the Earth – the biosphere, lithosphere, hydrosphere and atmosphere.   An example of this is the carbon cycle. The ocean is an important carbon sink, absorbing more than 30% of atmospheric carbon dioxide each year . A carbon molecule can remain trapped in the ocean lithosphere for thousands of years or can move rapidly through the marine environment, as carbon dioxide for photosynthesis. As the amount of atmospheric carbon dioxide increases, the amount held within the ocean also increases. The carbon dioxide combines with water, forming carbonic acid. In excess, this can cause ocean acidification, impacting on the marine ecosystem and contributing to issues such as coral bleaching.   Coral Bleaching Carbon dioxide uptake by water plants Conduct a simple test to show how carbon dioxide uptake by water plants reduces the acidity of water. Our video The Carbon Cycle and Our Oceans demonstrates

The Lifecycle of Geology in a Civil Engineering Project - Part 2

The Lifecycle of Geology in a Civil Engineering Project - Part 1

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Weather Disasters

Waste in Australia

Milankovitch Cycles

Greenhouse Effect (III) - Albedo

Life in the Greenhouse (I) - The Basics