Here are some links to some articles I have written recently on TreeHugger.com:
1) Warning! Riding a Bicycle Can Have the Following Side Effects: This one was picked up by a good handful of other online publications, and even translated into Portuguese.
2) Quitting Coffee is One of the Easiest Ways to Help The Planet and Yourself : This article's suggestion hit an unintentional nerve, resulting in about 40 mostly angry replies by caffeine addicted environmentalists such as myself. There was even a counter article written on change.org . I still retain my opinion and also still drink coffee, but I am trying to quit.