We could not imagine having the pretension that a website about environmentalism would lack a reference to John Muir, arguably the real father of the modern environmental movement.  There is little we can say about him that would do his legacy justice in this short space.  Rather we would refer you to one of the following links to learn more about this remarkable man, to whom all who revere nature owe a great deal.

• Sierra Club - Biography of John Muir (founder of the Sierra Club itself)
• Wikipedia - John Muir
• Ecology Hall of Fame - John Muir