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Streamflow

Increasing in Eurasian Arctic, significant increases or decreases in some river basins (this report, Chapter 1, Section 1.3.2). Earlier spring peak flows and increased winter base flows in Northern America and Eurasia (this report, Chapter 1, Section 1.3.2).

Evapotranspiration

Increased actual evapotranspiration in some areas (WGI AR4, Chapter 3, Section 3.3.3).

Lakes

Warming, significant increases or decreases of some lake levels, and reduction in ice cover (this report, Chapter 1, Section 1.3.2).

Groundwater

No evidence for ubiquitous climate-related trend (this report, Chapter 1, Section 1.3.2).

Floods and droughts

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