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There has been a growing focus on uncertainty as a distinct concept in the risk literature. This paper is concerned with how those involved in the design and implementation of climate change policy conceptualize risk and uncertainty. Based on interviews with policy and industry elites in Australia, China and the UK, it finds that participants did not distinguish between "risk" and "uncertainty" in their conceptualization of climate threats. For the majority of them, politics was the most significant source of risk and uncertainty in climate policy, but delegation of otherwise political decisions to the market was seen as the best solution. The conclusion suggests that the conceptual distinction between risk and uncertainty is less important, for policy and industry elites, than the need to develop mechanisms that account for both persistent scientific uncertainties as well as interpretive and moral ambiguities in climate policy design and implementation. [ABSTRACT FROM AUTHOR]

The present paper provides a scientific assessment of the inter-decadal variability of the Asian summer monsoon and its significant effect on precipitation patterns in China. The paper consists of four parts. The first part shows the observed inter-decadal weakening of the Asian summer monsoon since the end of 1970s. The second part describes the impact of the weakening Asian summer monsoon on precipitation in China, which caused the major monsoon rainbelt to shift southward from North China to South China over about 30 years, with a 60-80 oscillation dominating. The third part projects the future change of the Asian summer monsoon in the warmer climate by using IPCC AR4 climate models. It has been found that major monsoon rainfall belts in East Asia will move northward in the 2040s, with summer precipitation in North China increasing considerably and stably. Finally, in the fourth part, the implication of the adaptation to the above climate change and related water management will be discussed including the water transport engineering project from the Yangtze River to the Yellow River and North China. [ABSTRACT FROM AUTHOR]