Helping feed the world without polluting its waters
Friday, February 4, 2011 - 11:02
in Earth & Climate
A growing global population has lead to increasing demands for food. Farmers around the world rely, at least in part on phosphorus-based fertilisers in order to sustain and improve crop yields. But the overuse of phosphorus can lead to freshwater pollution and the development of a host of problems, such as the spread of blue-green algae in lakes and the growth of coastal 'dead zones.'...