A tropical grass capable of cleaning polluted waters is attached to a bamboo raft and floating in the Philippines.

Image courtesy: hana.com.ph
Transcript of the Audio Podcast:
A floating billboard adds up to cleaner water… on this CurrentCast.
There’s a grassy billboard in the polluted Pasig river in the Philippines, and it’s doing double duty: putting the message on the water, and…
Manarang: “It’s actually cleaning the water.”
That’s Mary Manarang, founder of Vetiver Farms in the Philippines. Her company created an 88-foot floating billboard made of Vetiver, a perennial tropical grass with roots that grow nearly ten feet deep – absorbing pollutants from the water and transforming them into plant biomass. The billboard can clean up to 8,000 gallons of water a day.
The plant floats on bamboo rafts, its leafy message spelling out this promise: “clean river soon” – reminding people to not pollute the water.
Support for CurrentCast comes from the Mitsubishi Corporation Foundation for the Americas. Learn more online at CurrentCast.org
Learn More:
- “Beauty Brand’s Floating Billboard Cleans a Polluted River by Absorbing Toxins” from AdWeek
- “This Floating Billboard Is Cleaning Up A Polluted River in Manila” from FastCompany
- The Vetiver Network International






