This issue was raised on another DP Environment & Climate issues thread.
http://www.debatepolitics.com/Enviro...th-pole-4.html (This summer may see first ice-free North Pole)
Chlorine is found in many rocks on Earth. Chlorine occurs as "Apetite" crystals, which seems taht Chlorine was present when the rocks formed, the Clorine gas was trapped, and formed a crystal compound, as the rock cooled, to form the Earth's Crust.
Chlorine Chemistry Division : The Mineral Apatite: A Natural Source of Chlorine Volcanic Hazards: Gases (sulfur dioxide, carbon dioxide, hyrdogen chloride, and hydrogen fluoride) Geochemical Methods of Prospecting ... - Google Book Search
One problem of burning Carbon, and making more CO2, is that the Oceans take up the CO2, from the Atmosphere, and the Oceans become more acidic. In addtion, Chlorine is being released as rocks "Weather". Erode by water flow, or brak up into sand by water current pounding rocks together, or avalanches, rocks falling on each other, or erosion from the Atmposphere. As the surface of a rock is removed or cracked, Chlorine is realease from the crystaline form, that captured the Clorine, when the Magma cooled.
Kilauea lava meets the sea again: will you be assaulted by a salty (and stinging) plume?
What can be discussed, is that a guy at Harvard recently devised a machine to put Chlorine back into rocks. Ther is currently a lot of Chlorine in the Ocean, and more comine every day. If Man could remove the Clorine from the ocean, then the Oceans would be less Acid, and Man would have more time to figure out what to dow with all his CO2, without making the oceans too acid, killing Coral.
TG Daily - UPDATE: Scientists find a cure for global warming: hydrochloric acid Ocean CO2 collector could fight global warming and ocean acification Nature's cure : article : Nature Reports Climate Change
Environ. Sci. Technol., 41 (24), 8464–8470 10.1021/es0701816
Web Release Date: November 7, 2007
Copyright © 2007 American Chemical Society
Electrochemical Acceleration of Chemical Weathering as an Energetically Feasible Approach to Mitigating Anthropogenic Climate Change
Kurt Zenz House,*† Christopher H. House,‡ Daniel P. Schrag,†§ and Michael J. Aziz§
Department of Earth and Planetary Sciences, Harvard University, Cambridge Massachusetts 02138, Department of Geosciences, Pennsylvania State University, University Park, Pennsylvania 16802, and Harvard School of Engineering and Applied Sciences, Cambridge Massachusetts 02138
Received for review January 23, 2007
Revised manuscript received September 24, 2007
Accepted September 27, 2007
Abstract:
We describe an approach to CO2 capture and storage from the atmosphere that involves enhancing the solubility of CO2 in the ocean by a process equivalent to the natural silicate weathering reaction. HCl is electrochemically removed from the ocean and neutralized through reaction with silicate rocks. The increase in ocean alkalinity resulting from the removal of HCl causes atmospheric CO2 to dissolve into the ocean where it will be stored primarily as HCO3− without further acidifying the ocean. On timescales of hundreds of years or longer, some of the additional alkalinity will likely lead to precipitation or enhanced preservation of CaCO3, resulting in the permanent storage of the associated carbon, and the return of an equal amount of carbon to the atmosphere. Whereas the natural silicate weathering process is effected primarily by carbonic acid, the engineered process accelerates the weathering kinetics to industrial rates by replacing this weak acid with HCl. In the thermodynamic limit—and with the appropriate silicate rocks—the overall reaction is spontaneous. A range of efficiency scenarios indicates that the process should require 100–400 kJ of work per mol of CO2 captured and stored for relevant timescales. The process can be powered from stranded energy sources too remote to be useful for the direct needs of population centers. It may also be useful on a regional scale for protection of coral reefs from further ocean acidification. Application of this technology may involve neutralizing the alkaline solution that is coproduced with HCl with CO2 from a point source or from the atmosphere prior to being returned to the ocean.
Electrochemical Acceleration of Chemical Weathering as an Energetically Feasible Approach to Mitigating Anthropogenic Climate Change
I am not sure how Chlorine got into rocks in the first place. I do not understand how the Harvard machin puts Chlorine back into rocks.
So I started this thread as part of a process of increasing my understandings.
..
Re: Chlorine Acidifying Oceans from Rocks 
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