Home >> Vital Climate Graphics >> Temperature trends and projections
File type Download Size Language
.jpg .jpg Download 35 kb -
.pdf .pdf Download 1 mb -
.png .png Download 114 kb -
Uploaded on Wednesday 22 Feb 2012 by GRID-Arendal

Temperature trends and projections

Year: 2005
From collection: Vital Climate Graphics
Author: Philippe Rekacewicz, UNEP/GRID-Arendal
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.)
Views: 316     Downloads: 316     Rating: 2
Global atmospheric concentration of CO2
Sources of greenhouse gases
Radiative forcing - energy balances and the greenhouse effect
Main greenhouse gases
Potential climate change impacts
Temperature and CO2 concentration in the atmosphere over the past 400 000 years
Thinning of the Arctic sea-ice
IPCC structure