- Ramaswamy, V., M. D. Schwarzkopf, and K. P. Shine, 1992: Radiative
forcing of climate from halocarbon-induced global stratospheric ozone loss.
Nature, 355, 810-812.
Abstract: Observations from satellite and ground-based instruments
indicate that between 1979 and 1990 there have been statistically significant
losses of ozone in the lower stratosphere of the middle to high latitudes
in both hemispheres. Here we determine the radiative forcing of the surface-troposphere
system due to the observed decadal ozone losses, and compare it with that
due to the increased concentrations of the other main radiatively active
gases (CO2, CH4,
N2O and chlorofluorocarbons) over the same
time period. Our results indicate that a significant negative radiative
forcing results from ozone losses in middle to high latitudes caused by
the CFCs and other gases. As the anthropogenic emissions of CFCs and other
halocarbons are thought to be largely responsible for the observed ozone
depletions, our results suggest that the net decadal contribution of CFCs
to the greenhouse climate forcing is substantially less than previously
estimated.