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Posts Tagged ‘Proceedings of the National Academy of Sciences’

Fresh Water Becoming Saltier Around the United States

Friday, January 12th, 2018
Fig. 1. Maps showing locations of increasing, decreasing, and/or no trends in specific conductance and pH in stream water throughout the continental United States. Streamlines represent all conterminous US rivers with mean annual discharge exceeding 20 m3 /s (47).

The freshwater salinization syndrome can increase risks to the safety of drinking water and infrastructure. Elevated salt levels in drinking water can contribute to hypertension in people on sodium-restricted diets and is of concern to people requiring kidney dialysis (9). Salinization and alkalinization influence the corrosivity of water, and this can affect leaching of metals from pipes carrying drinking water (9, 68).

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Climate Change Damages to Alaska Public Infrastructure

Friday, February 24th, 2017
Fig. 1. Alaska’s boroughs overlaid on a map of permafrost distribution across the state.

Climate change in Alaska is causing widespread environmental change that is damaging critical infrastructure. As climate change continues, infrastructure may become more vulnerable to damage, increasing risks to residents and resulting in large economic impacts.

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