Human-induced changes in the nitorgen cycle: from fritz haber to ozone alerts
A look at how the growth of the human population has been spurred by the discovery of nitrogen fertilizers and what the environmental costs might be. 
Bob Antibus

Mycorrhizas: Soil fungi essential to sustainable forestry
A look at how certain soil fungi are essential to the growth of trees and maintenance of soil quality.
Bob Antibus

How Your Eyes and Brain Work Together
Wonderful new learning from neuroscience about how we perceive and interact with the world in a visual way. Multitasking, memory, patterns and attention in a world of uncertainty, chaos, multimedia and rapid change.
Ron Headings

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