Mid-and long-term energy demand and greenhouse gas (GHG) emission scenarios in China were analyzed using the IPAC model.

Based on the results simulated by HadCM2 under two greenhouse gases emission scenarios, in which equivalent CO 2 increases respectively by 1% and 0 5% per year in concentration since 1990 onward, changes of surface air temperature and precipitation in China during the 21st century are compared.

By adopting IPCC-AR4 results, the main characteristics of climate and the variation of utilizable precipitation in Northeast China under A1b, A2 and B1 greenhouse gases emission scenarios are analyzed.

In order to predict potential impacts of climate change in the future 40 years at the Hilly-gully region of Loess Plateau under three emission scenarios of A2,B2,and GGa1,observed climate data from 1986 to 2003 in Ansai Experimental Station and downloaded GCM(HadCM3)grid data during 1986 to 2049 were used,based on spatial and temporal downscaling.

Numerlcal simulation of regional climate change under IPCC A2 scenario in China.;

The PRECIS,a regional climate model system developed at the UK Met Office Hadley Centre for Climate Prediction and Research,is employed to simulate the future climate change responses in the time-slice of 2071—2100 relative to baseline (1961—1990) under SRES A2 scenario over China.