Artificial Resuscitation Pumping New Life into Brackish Baltic Sea

Polluted and virtually cut off from the restorative flow of other bodies of water, Europe's Baltic Sea is slowly running out of oxygen. But one scientist hopes to artificially oxygenate it with pumps. Critics worry there could be unforeseen consequences.
A massive algae slick forms in the Baltic Sea off Fehmarn Island near the German-Danish border.

A massive algae slick forms in the Baltic Sea off Fehmarn Island near the German-Danish border.

dpa Picture-Alliance / Carsten Rehder/ picture-alliance / dpa
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