On your website at your environmental page, you make it very clear of your awareness of the environment and your responsibility to it. I think this design will tell people that. The earth and sky color combo work nicely with your company name, and it subtly mixes your environmental position with the day to day job that you do.
Your not Greenpeace nor do you want to be, but you are green aware. This tells that story.
(This comment references Entry #37)