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Viet Nam is considered as one of the most vulnerable countries due to CC and sea level rise. If sea level rise of 1 m, Viet Nam will loose about 12% of land, 23% of population will be affected. Typhoons occur more frequently with higher intensity. Temperature increases and change in rainfall pattern will affect agriculture and water resources. | CLIMATECLIMATE CHANGECHANGE ANDAND IMPACTSIMPACTS ININ VIETVIET NAMNAM • Viet Nam is considered as one of the most vulnerable countries due to CC and sea level rise. • If sea level rise of 1 m, Viet Nam will loose about 12% of land, 23% of population will be affected. • Typhoons occur more frequently with higher intensity. • Temperature increases and change in rainfall pattern will affect agriculture and water resources. Impacts of sea level rise “Large percentage of 3 m Vietnam’s population and economic activities are located in these two river deltas. 14% of Vietnam population would be impacted by a 1m SLR. This is the largest percentage of 2 m 4 m impacted population among all 84 countries. Vietnam impacted population would 1 m reach 35% with a 5m SLR. The impact of SLR on 5 m Vietnam’s GDP and urban extent follow the impact on WB 2007 its population”. Inundation in Mekong River Delta due to 1 m Sea Level Rise Source: HMS ClimateClimate ChangeChange inin VietnamVietnam O • Annual average temperature 23.0 Annual temperature increases about 0.10C per decade. C In some summer months, 22.5 temperature increases about 0.1- 22.0 0.3oC per decade. 3 4 2 21.5 • More heavy 1 Yea 21.0 rainfalls 1974 1979 1984 1989 1994 1999r 2004 causing severe Variability (1), climatological average (2), moving average (time step - 11 year) (3) and linear trend (4) of Temperature at A Luoi floods; station. • Rainfall 5000 m Rainfall of Aug.- decreases in m Dec. dry season 4000 3 4 (Jul., Aug.) and 3000 2 increases in 2000 1 Year rainy season 1000 (Sep. to Nov.). 1974 1979 1984 1989 1994 1999 2004 Variability (1), climatological average (2), moving average (time step - 11 year) (3) and linear trend (4) of August- Source: Vietnam National communication December rainfall at A Luoi station. ClimateClimate ChangeChange inin VietnamVietnam Cumulative tracks of tropical cyclones (1985–2005) [Nicholls et al, 2007] Typhoon trajectory moves southward and typhoon season shifts to later months of