Lakes, pools and ponds that are typically fresh, clean and crystal clear are now discolored or splotched. The culprit is blossoming algae – and it’s sometimes laced with toxins.

Aug 19 2019 | 03:58 PM

BY DOUGLAS FEIDEN

In all its magnificent shadings, the color green shimmers across the vast lawns and meadows and grassy banks and forest glades of Central Park.

Unfortunately, green also colors the sprawling, multi-acre algae blooms that are now blighting the park’s most beloved bodies of water.

Fast-growing...