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Climate change and water: technical paper of the IPCC
Climate Change Resilience, Biodiversity Conservation
Available Online

Bates, Bryson

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Kundzewicz, Zbigniew

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Palutikof Jean

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Wu, Shaohon Wu

2008
Observational records and climate projections provide abundant evidence that freshwater resources are vulnerable and have the potential to be strongly impacted by climate change, with wide-ranging consequences for human societies and ecosystems. Observed warming over several decades has been linked to changes in the large-scale hydrological cycle such as: increasing atmospheric water vapour content; changing precipitation patterns, intensity and extremes; reduced snow cover and widespread melting of ice; and changes in soil moisture and runoff. Precipitation changes show substantial spatial and inter-decadal variability. Over the 20th century, precipitation has mostly increased over land in high northern latitudes, while decreases have dominated from 10°S to 30°N since the 1970s. The frequency of heavy precipitation events (or proportion of total rainfall from heavy falls) has increased over most areas (likely). Globally, the area of land classified as very dry has more than doubled since the 1970s (likely). There have been significant decreases in water storage in mountain glaciers and Northern Hemisphere snow cover. Shifts in the amplitude and timing of runoff in glacier- and snowmelt-fed rivers, and in ice-related phenomena in rivers and lakes, have been observed (high confidence).
Samoa Tsunami rapid environmental impact assessment report: draft October 14th 2009
Biodiversity Conservation
Available Online

Ifopo, Pulea Etiseli

2009
A rapid assessment of the environmental impacts of the 29 September tsunami was conducted by a multi-agency team from 3 to 14 October, 2009. Fourteen “green” and 10 “brown” environmental variables were selected and measured based on the experience of the survey team and similar reports from elsewhere. During a tour of the affected area on Upolu by car and on foot those “assessable” variables were scored “high” (over two thirds affected), “medium” (over one third, less than two thirds affected), “low” (less than a third affected) or zero (unaffected). Manono and Savaii were surveyed by air with the former showing evidence of some damage and the later apparently none or very little. The most affected areas in Upolu were villages in the Aleipata, Lepa and Falealili districts with the most obvious indicators of the tsunami’s impact being solid waste (sometimes resulting from the complete destruction of a village), erosion of the beach and fore-shore and the (expected) impact on marine resources. Other environmental variables assessed also showed similar patterns. Impacts on a wharf/dry dock facility are also described (including lost fuel drums) as are the possible environmental implications of new settlements created by displaced persons (mainly revolving around sanitation, drainage and water supply).