Changes in Impacts of Climate Extremes: Human Systems and Ecosystems
- 28 May 2012
- book chapter
- book charpter
- Published by Cambridge University Press (CUP)
Abstract
Executive Summary Extreme impacts can result from extreme weather and climate events, but can also occur without extreme events. This chapter examines two broad categories of impacts on human and ecological systems, both of which are influenced by changes in climate, vulnerability, and exposure: first, the chapter primarily focuses on impacts that result from extreme weather and climate events, and second, it also considers extreme impacts that are triggered by less-than-extreme weather or climate events. These two categories of impacts are examined across sectors, systems, and regions. Extreme events can have positive as well as negative impacts on ecosystems and human activities. Economic losses from weather- and climate-related disasters have increased, but with large spatial and interannual variability (high confidence, based on high agreement, medium evidence). Global weather- and climate-related disaster losses reported over the last few decades reflect mainly monetized direct damages to assets, and are unequally distributed. Estimates of annual losses have ranged since 1980 from a few US$ billion to above 200 billion (in 2010 dollars), with the highest value for 2005 (the year of Hurricane Katrina). In the period 2000 to 2008, Asia experienced the highest number of weather- and climate-related disasters. The Americas suffered the most economic loss, accounting for the highest proportion (54.6%) of total loss, followed by Asia (27.5%) and Europe (15.9%). Africa accounted for only 0.6% of global economic losses. Loss estimates are lower bound estimates because many impacts, such as loss of human lives, cultural heritage, and ecosystem services, are difficult to value and monetize, and thus they are poorly reflected in estimates of losses. [4.5.1, 4.5.3.3, 4.5.4.1]Keywords
This publication has 325 references indexed in Scilit:
- Potential effects of climate change and variability on watershed biogeochemical processes and water quality in Northeast AsiaEnvironment International, 2010
- Computational investigation of typhoon-induced storm surge in Hangzhou Bay, ChinaEstuarine, Coastal and Shelf Science, 2009
- Snow avalanche disturbances in forest ecosystems—State of research and implications for managementForest Ecology and Management, 2009
- Can natural disasters have positive consequences? Investigating the role of embodied technical changeEcological Economics, 2009
- Integrated hydrodynamic and economic modelling of flood damage in the NetherlandsEcological Economics, 2008
- Toward an experimental foundation for benefit-cost analysisEcological Economics, 2007
- Ecological economics of coastal disasters: Introduction to the special issueEcological Economics, 2007
- Full-cost accounting of coastal disasters in the United States: Implications for planning and preparednessEcological Economics, 2007
- Climate variability and planktonic communities: The effect of an extreme event (severe drought) in a southern European estuaryEstuarine, Coastal and Shelf Science, 2007
- Recorded storm damage in Swedish forests 1901–2000Forest Ecology and Management, 2004