Geo engineering proposals Benefits Drawbacks
Sending large electrified metal screen in to the upper atmosphere above Antarctica. Electron released from the screen will combine with the chlorine atoms for CFC to prevent atoms from destroying ozone. The screen might not vrelease enough electrons to be effective.
Adding propane gas to the upper atmosphere above Antarctica Propane would react chemically with chlorine atoms and prevent atoms from destroying ozone. Byproducts of bromine Chlorine reaction might produce other moleculesthat might free more chlorine atoms.
Destroying the CFC in the atmosphere by blasting them with beams from high power laser mounted on mountain tops. The laser could eliminate CFC before the molecules begin to destroy ozone. Laser technology to shoot CFC molecules out of sky does not exist as yet and will probably require vast amount of energy.
This process for eradication of polluting gas** It will have neutral effect on preventing action of CFC. It will neutralize chlorine atom if suitable manifestation for application is developed. Nothing is known.
• The source of information given in table for other than the last method are based on information given by Baskin, 1996.
** The Process has been patented.
Table 4: Benefits and drawbacks of geo-engineering proposal to counter ozone depletition.
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