Find the latest episode of "The Uncertain Hour" here. Listen
Green Tip and Trade

Cut back or curb your use of fertilizers

Matt Berger Nov 25, 2010

Excess fertilizer that makes it into our oceans through urban runoff can increase the growth rate of plankton. As a result, algae naturally found in the water can grow at an accelerated pace or “bloom” and accumulate into dense, visible patches near the surface of the water.

“Red Tide” is a common name for such a phenomenon where certain phytoplankton species contain reddish pigments and “bloom” such that the water appears to be red. While “Red Tides” are generally not harmful to humans, certain types can release strong neurotoxins that can be ingested by shellfish and passed on to humans who eat the infected shellfish. For more information visit Surfrider.org.

Marketplace is on a mission.

We believe Main Street matters as much as Wall Street, economic news is made relevant and real through human stories, and a touch of humor helps enliven topics you might typically find…well, dull.

Through the signature style that only Marketplace can deliver, we’re on a mission to raise the economic intelligence of the country—but we don’t do it alone. We count on listeners and readers like you to keep this public service free and accessible to all. Will you become a partner in our mission today?

Your donation is critical to the future of public service journalism. Support our work today – for as little as $5 – and help us keep making people smarter.