Explore historical and projected climate data, climate data by sector, impacts, key vulnerabilities and what adaptation measures are being taken. Explore the overview for a general context of how climate change is affecting Tuvalu.

Impacts Water

Tuvalu’s fresh water supply depends almost entirely on rainfall. Groundwater available is often brackish and unsuitable for consumption. Sea-level rise is likely to increase issues of salt intrusion into groundwater and soils. Increased sea-levels also increase the risks of damage to water supply infrastructure from natural hazards. Model predictions on future precipitation trends are highly uncertain. Global modelling suggests a general trend towards greater variability and greater extremes, however, there is disagreement between models covering the Polynesia region, some predicting declining annual precipitation others suggesting increases.

This section provides insights into projected climate change impacts on various hydrological indicators.