Increasing blanket of mucus-like substance in water threatens coral and fishing industry

The precipitation, although lasting just a few days, was good news for dams supplying water to more than 15 million people in the city. Just a few weeks after a drought alert, dams have seen a rise in their water levels.

When conditions are right, phytoplankton populations can grow explosively. And the ones blooming in the Black Sea right now are reflective, turning the usually dark water bright and milky.