Increasing wildfires, and the nutrients they bring, could bring more algae blooms to the Arctic Ocean. (via hakaimagazine)
Global warming is making wildfires more common. In the Arctic Ocean and other nutrient-limited ecosystems, the extra nutrients borne by wildfire smoke can trigger algae blooms.
Because the Arctic Ocean ecosystem is typically limited by the availability of nitrogen, researchers including Douglas Hamilton, an atmospheric scientist at North Carolina State University, started looking for where a glut of the nutrient might have come from to trigger the bloom. One by one, Hamilton and his colleagues examined various ocean-based sources, such as the upwelling of cold nutrient-rich water or the runoff from rivers. Nothing seemed to add up.
“We can’t say for certain yet as we have only recorded a couple of these events so far, but it seems to be going in that direction,” Llort says.
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