Word: jacob
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...Sodium chloride from sea spray releases chlorine which may go through a series of steps, similar to the steps of bromine, to deplete ozone," Jacob says. "It's all theoretical work here [at Harvard], but experimentalists at [the University of Virginia] and MIT have observed ozone-eating chlorine gases over the ocean...
Ozone in the troposphere and the stratosphere play very different roles, which initially seem unconnected. Jacob says this is not the case. "Ozone is a very complicated molecule, just in terms of its environmental effects," he says...
...release on the order of a billion tons of material into the atmosphere," Jacob says. "The atmosphere can't hold that much, and what goes up must come down...
...Most of the oxidation takes place in the troposphere," said Jacob. "There are only a few strong radical oxidants that can perform the reactions. They ordinates from ozone...
...CFCs, which destroy stratospheric ozone, are going out, and HCFCs are coming in," Jacob says. "The HCFCs won't break down the ozone in the stratosphere, because they can be oxidized in the troposphere...