Ethan Wells has lived along the Ohio River for almost all of his 32 years. One day last August near his home in Sistersville, an hour south of Wheeling, West Virginia, he noticed blue-green algae growing along the riverbank. And each time he looked, there was more of it.
“I grew up on a farm around ponds and on the river so I knew what it was,” Wells says. “It started to cover the river—like a neon slime across the top. And it was kind of eerie in a way to have the river alive like that.”