Red Tides Sparked by Human Activity and Effects of Climate Change

A noxious red tide has descended on the U.S. East Coast, killing fish and ruining spring break before it's even begun.

The red tides have been plaguing the Florida coast for the past few months, but this week has been particularly bad, with 89 out of 157 samples from the waters along Florida's Gulf Coast testing positive for the algal bloom, according to the Florida Fish and Wildlife Conservation Commission.

This has resulted in around 20 tons of dead fish and debris washing up on Florida beaches since December 12,...