Filling in the holes


  • Anonymous


Remove the CFCs from the atmosphere and you could regenerate the ozone layer in less than a year, according to a Stanford University civil engineer. Using a computer model that accounts for gas and aerosol chemistry, radiation and pollution, and general atmospheric circulation, Mark Jacobson has postulated that if all halogenated, ozone-depleting compounds were removed from the stratosphere, atmospheric ozone would return to normal levels within 9 months.

To arrive at the rate of regeneration of ozone, Jacobson removed all chlorine compounds and ozone from his model stratosphere, then allowed the program to simulate the processes by which the atmosphere would regenerate ozone naturally. In this extreme model, ozone concentrations rose from 1 DU to 150 DU within 10 days, and up to 200 DU within 27 days.