"You take the blue pill and the story ends. You wake in your bed and you believe whatever you want to believe."
"You take the red pill and
you stay in Wonderland and I'll show you how deep the
rabbit-hole goes."
Vital Climate Graphics :
Potential Impacts
of Climate Change
Next: Scenarios of
Sea Level Rise
21. Using the IS92 emission scenarios, projected global mean
temperature changes relative to 1990 were calculated up to 2100.
Climate models calculate that the global mean surface temperature
could rise by about 1 to 4.5 centigrade by 2100. The topmost curve is
for IS92e, assuming constant aerosol concentrations beyond 1990 and
high climate sensitivity of 4.5 °C. The lowest curve is for IS92c and
assumes constant aerosol concentrations beyond 1990 and a low climate
sensitivity of 1.5 °C. The two middle curves show the results for
IS92a with "best estimate" of climate sensitivity of 2.5 °C: the upper
curve assumes a constant aerosol concentration beyond 1990, and the
lower one includes changes in aerosol concentration beyond 1990. (It
is assumed that the Greenhouse effect is reduced with increased
aerosols.)
Note: In IPCC reports, climate sensitivity usually refers to the long-
term or equilibrium, change in global mean surface temperature
following a doubling of CO2-equivalent atmospheric concentrations.
More generally, it refers to the equilibrium change in surface air
temperature following a unit change in radiative forcing (°C/Wm-2)
Next: Scenarios of
Sea Level Rise
Vital Climate Graphics :
Potential Impacts
of Climate Change
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