Here is my (hopefully growing) list of writing clips.
Slow Travel Berlin
How to travel slowly in Munich, November 20, 2012
The Why Files
Ocean fish in hot water, January 19, 2012
The secret life of cats, June 9, 2011
Discovery News, Tech
Five ways social networking strengthens a campaign, February 4, 2010
Glide Magazine
Hot Buttered Rum: Rum goes green, May 8, 2008
My (currently inactive) other blog: Hope on Earth
alltagsgeschichte 
Hi Jenny,
I got here via your Hope on Earth blog, which I found when I typed in “hopeful environmentalist” after searching through a seemingly bottomless pit of sad, angry environmental writing. Wow! I hadn’t realized that there’s so little environmental writing that isn’t fatalistic.
I’m working on a project that involves finding an inspiring quote about preserving the scenic outdoors for future generations. Let me know if you are aware of any writers who have uplifting things to say about preserving the environment!
Thanks for contacting me! Yes, I share your concern about the dearth of positive and hopeful environmental writing out there. The only person that immediately comes to mind re: inspiring quotes is the late Wangari Maathai, but I will keep pondering. Good luck with your project!
Thanks!