Producing “biochar” is a 2,000 year-old practice that converts agricultural waste into a soil enhancer that can hold carbon, boost food security, and increase soil biodiversity, and discourage deforestation. The process creates a fine-grained, highly porous charcoal that helps soils retain nutrients and water. A new study now also shows that biochar can save health costs by helping clear the air of pollutants.
Research: Biochar reduces air pollution, saves health costs
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