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Environment

University of Washington environmental engineers are launching a new study to try to understand how climate change will affect streamflow patterns in the Columbia River Basin. The team will look at the impact of glaciers on the river system, the range of possible streamflow changes and how much water will flow in the river at hundreds of locations in future years.

Floods didn’t make floodplains fertile during the dawn of human agriculture in the Earth’s far north. Turns out early human inhabitants can mainly thank cyanobacteria. It raises the question of whether modern farmers might reduce fertilizer use by taking advantage of cyanobacteria that occur, not just in the floodplains studied, but in soils around the world.

For the first time, scientists have direct geochemical evidence that the 150-mile long Tsangpo Gorge, possibly the world’s deepest, was the conduit by which megafloods from glacial lakes, perhaps half the volume of Lake Erie, drained catastrophically through the Himalayas when their ice dams failed during the last 2 million years.