Since I finished my degree in 2006 I haven't spent a lot of time writing, but I am going to start again soon.
If there is something that you are looking for then let me know. I can point you towards some sources and let you know my opinions.
This a collection of short papers that I have written over the years.
Mostly of the essays are things that I have written for classes and are generally between 6 to 10 pages long and are focused on issues related to the environment.