Oysters help clean ocean
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JAQUELINE DELIA/RUSH / CAMERA PRESS
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Oyster shells are to clean up waste water in Oshima, Japan. ‘Oyster shells harbour large numbers of anaerobic and aerobic microbes on their surfaces. Dirty water is food for these microbes,’ explains Toyokuni Asahina, one of the designers of the wastewater plant. Around 250 tonnes of shells will be used annually to form layers in filtration tanks where the oyster-shell microbes can feast on kitchen, bath and laundry water from 265 households.
New Scientist Vol 161 No 2169
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Voices from the margins:
Multimedia: video, podcasts, and more.
- Poetry Slam in Zimbabwe
- The House of Hunger poetry slam held in Zimbabwe in 2006, and organised by the Pamberi Trust, showcased young artists performing inspirational work on issues from corporate power to child soldiers. The video features four of the poets.
Published by Pambazuka News.
- Iranian women speak out
- 3 March 2007, London. Women's rights activists marched through the English capital last week to celebrate International Women's Day with a protest against the misogyny of the Islamic regime in Iran and the threat of invasion by the US. Hear the voices of Iranian feminists Azar and Leila Parnian and the sounds of the demonstration as it passed through the heart of the city. Click here to learn more about the campaign.
Produced by Heidi Bachram.
- Raised Voices audio:
- Benny from West Papua on Corporate Power
- Vinayan from India on agriculture
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