30 January 2009

Earthworms 'save' planet

earthworm-produced calcite could lock up 564kg of carbon per hectare of soil per year. Put into context, typical soil-based carbon sequestration techniques such as using cover crops, organic composts and manures, and converting degraded soils into forests could sequester 300 to 800 kg of carbon per hectare per year.
-- Mark Hodson on Darwin's humble earthworm and its 'impossible' poo.

No comments: