Caring for Land

Closing the phosphorus loop

Sharon Oostoek Saturday's Globe and Mail Monday, Mar. 15,

Like a fickle god, phosphorus gives life and takes it away. If too much leaches into lakes and streams, algal blooms suck oxygen from the water and choke off life. But if too little exists, we are all in trouble: Phosphorus is a dwindling, and non-renewable, component of agricultural fertilizers, essential to growing food for Earth’s burgeoning population, says the International Institute for Sustainable Development, a Winnipeg-based environmental think tank, which recently released a report on phosphorus spills in Manitoba's waterways.