* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download HKIE Climate Change Corner Iss - The Hong Kong Institution of
Instrumental temperature record wikipedia , lookup
Intergovernmental Panel on Climate Change wikipedia , lookup
Stern Review wikipedia , lookup
Myron Ebell wikipedia , lookup
Soon and Baliunas controversy wikipedia , lookup
Climate change mitigation wikipedia , lookup
Climatic Research Unit email controversy wikipedia , lookup
Michael E. Mann wikipedia , lookup
Low-carbon economy wikipedia , lookup
Global warming controversy wikipedia , lookup
Heaven and Earth (book) wikipedia , lookup
Fred Singer wikipedia , lookup
Climatic Research Unit documents wikipedia , lookup
2009 United Nations Climate Change Conference wikipedia , lookup
German Climate Action Plan 2050 wikipedia , lookup
ExxonMobil climate change controversy wikipedia , lookup
Climate resilience wikipedia , lookup
Mitigation of global warming in Australia wikipedia , lookup
Global warming wikipedia , lookup
Climate change denial wikipedia , lookup
Effects of global warming on human health wikipedia , lookup
Climate sensitivity wikipedia , lookup
Climate change feedback wikipedia , lookup
Climate engineering wikipedia , lookup
Climate change in Australia wikipedia , lookup
Politics of global warming wikipedia , lookup
Climate change in Canada wikipedia , lookup
General circulation model wikipedia , lookup
Attribution of recent climate change wikipedia , lookup
Climate change in Tuvalu wikipedia , lookup
Citizens' Climate Lobby wikipedia , lookup
Climate governance wikipedia , lookup
Climate change adaptation wikipedia , lookup
Solar radiation management wikipedia , lookup
Economics of climate change mitigation wikipedia , lookup
Effects of global warming wikipedia , lookup
Media coverage of global warming wikipedia , lookup
Climate change and agriculture wikipedia , lookup
United Nations Framework Convention on Climate Change wikipedia , lookup
Climate change in the United States wikipedia , lookup
Carbon Pollution Reduction Scheme wikipedia , lookup
Public opinion on global warming wikipedia , lookup
Scientific opinion on climate change wikipedia , lookup
Economics of global warming wikipedia , lookup
Effects of global warming on humans wikipedia , lookup
Climate change and poverty wikipedia , lookup
Surveys of scientists' views on climate change wikipedia , lookup
Climate Change Corner Benefits of Mitigation Policies on Climate Change A study (Warren et al., submitted) examines the implications of mitigated and unmitigated climate change for four global climate models. An integrated assessment model, CIAS (Warren et al. 2008), developed by the Tyndall Centre for Climate Change Research (UK), is used to project the impacts of climate change associated with various emissions scenarios, and in particular to demonstrate the dramatic extent to which climate mitigation policy would reduce the projected changes in drought regime for Europe under various scenarios over the 21st century. The emission scenarios, developed by the Intergovernmental Panel on Climate Change (IPCC) (Nakicenovich and Swart, 2000), are used to project future unmitigated climate change and have maximum concentrations of CO2 in the atmosphere of 970 ppm by 2100. The mitigated climate change scenarios have atmospheric CO 2 concentrations stabilised at approximately 450, 500, and 550 ppm by 2100, as well as a further extreme scenario which stabilizes CO2 concentrations at 400 ppm. Modelling results show pronounced increases in drying in Southern Europe, especially around the Mediterranean and the Black Sea, and also in NW Europe in the second half of the 21st century. More frequent drought events and increased number of months affected by drought are anticipated in these regions. However, significant impacts still occur except for the most stringent scenarios with stabilization at 400 to 450 ppm CO2. It has been proved that mitigation has a great potential to minimize CO2 increases projected after 2050. Nevertheless, very stringent mitigation scenarios stabilizing CO2 concentrations at 400 to 450 ppm would be necessary to avoid most of the drought impacts. This echoes the urgent need for effective mitigation policies / measures such as greater use of renewable energy, public transport and alternative fuels, as well as heightened public awareness. References: (1) Nakicenovich, N., and Swart R. Special Report on Emissions Scenarios. Cambridge, UK, 2000. Cambridge University Press. (2) Warren, R., S. et al. Development of the Community Integrated Assessment System (CIAS), a multi-institutional modular integrated assessment approach for modelling climate change, and of SoftIAM, its supporting software. Environmental Modelling and Software, (2008) 23, 592-610. (3) Warren, R., R. Yu, T. Osborn, and S. de la Nava Santos, Future European Drought Regimes under Mitigated and Unmitigated Climate Change: Application of the Community Integrated Assessment System, Submitted. ============================================================================================================= This article is contributed by Ms Rita YU of ERM-Hong Kong, Limited with the co-ordination of the Environmental Division.