Being a professional nature photographer and being environmentally responsible do NOT necessarily go hand-in-hand. In fact, being successful as a nature photographer can be associated with adverse environmental consequences - how many trees did it take to produce your latest calendar? Conversely, going green can negatively impact on your success and exposure - how many fewer readers bought and downloaded that E-book compared to its printed precursor? The choices can be tough!
Coming in winter 2013...if I can find the time!