Okay, so I confess that I am not very green..... maybe do have a hint of Olive tone in my skin, but I know I can start making a difference, even in a town that does not care about "green issues". I have to thank Dena Stevens for the inspiration. Please keep in mind that this article is not coming from the expert Eco-broker, it's coming from a Realtor that is interested in making a difference.
As kids we get bombarded with information about helping the environment, recycling, caring for our earth. So what happens when we are no longer kids? Do we forget all those responsibilities?; do we forget we can make a difference? Do we go on with our day to day life and don't take a little time to think that no matter how small, at least we are doing something?
The great thing about starting small is that you create awareness, influence others, and slowly become more and more "green conscious". In architecture school we are taught to be true to the location, to use native materials, to work with existing resources. If there's clay, use clay, if there's coral, use coral - the concept is simple, and OH so important. Local materials don't have to be transported across the nation, saving fuel and precious resources. This particular example applies to architecture and construction, but other simple concepts can be applied no matter the industry.
Although Miami is not known as an environmentally aware city, you do see the occasional solar panel (where the owner is regarded as "cheap", never "eco-friendly"); you do see native materials being used and energy efficient materials like bamboo flooring, granite counter tops and insulated windows; good landscapers use Native plants like Gumbo Limbos (one of my favorite trees) - take a look at a book by Frederic Stresau called "Florida, My Eden"; and most South Florida cities even have a great recycling system in place. 
So what can we do as Realtors to make a difference, even if you are not the EcoBroker,or even if you are not gung-ho green? Start with your print advertising. Find a printer that uses vegetable inks and recycled papers, if that's not possible or price prohibitive (like in Miami), at least use a digital printer which uses less waste. Educate yourself about those energy efficient materials, chances are that a lot of homes you have sold are green in nature and you did not even know it. Start saving paper and go paperless (I know you cannot go completely paperless, but A LOT of your paperwork can be eliminated with technology). Pass on the information to your kids with the idea that they will apply the concepts always, no littering, recycling, planting trees.
THINK GREEN !- don't be intimidated, don't leave it for tomorrow, start small, you will make a difference.
Ines, Very well done. I've been trying to write one of these for the contest but keep coming up blank. I guess I'm not very green conscious even though I know I should be. I am reading and learning though. I love the green sunset. Has that been altered?