气候变化国家评估报告(Ⅱ):气候变化的影响与适应

National Assessment Report of Climate Change (Ⅱ): Climate change impacts and adaptation

已经观测到的气候变化影响是显著的、多方面的。各个领域和地区都存在有利和不利影响,但以不利影响为主,未来的气候变暖将会对中国的生态系统、农业以及水资源等部门和沿海地区产生重大的不利影响。采取适应措施可以减轻气候变化的不利影响,应将适应气候变化的行动逐步纳入国民经济和社会发展的中长期规划中。由于我国科学研究的相对不足和科学认识能力的局限,目前的气候变化影响评估方法和结果还存在很大的不确定性。应当加强区域适应气候变化的案例研究、扩大研究领域、加强极端天气、气候事件影响的研究,以降低影响评估的不确定性,并提出切实可行的适应对策。

The significant and various impacts of climate change are observed from the past experience, the impacts were shown as advantageous and adverse impacts in different sectors and regions, while mainly presented as adverse. It is very likely that future climate change would result in significant adverse impacts on the ecosystem and the national sectors such as agriculture, water resources, and coastal zones in China. The adverse impacts would be alleviated by adopting adaptive measures; the adaptive actions to climate change should be incorporated into the medium- and long-term planning of national economic and social development. Because of lack of scientific research and limit of understanding on climate change, there are still a lot of uncertainties for impact assessment methodology and results. Case studies should be strengthened, research aspects should be enlarged, and impacts assessment of extreme weather/climate events should be enhanced to reduce the uncertainties and develop practical adaptive measures to cope with climate change in China.