I think, in a lot of places, the solar panels are a badge of honor; they're trendy. If you go to Hawaii or Japan, people even install fake solar panels because it's cool and it's popular. And so I think solar panels have gotten a lot more attractive. They're sleek, black, they look good on a roof.

Thanks to the social web, we can share and trade to use a whole universe of things we once had to buy ourselves. From cars to solar panels, people are realizing they can reap the benefits of ownership without the expense and hassle of buying.

As we settle into 2013, I predict this: We'll see companies that promote this shift from private ownership thrive. More people will be able to access things they simply don't need to own, and they'll save money and live better, cleaner, green lives doing it.

For Pocketbook Environmentalists, financial savings are the primary motivator. However Pocketbook Environmentalists are changing the face of the market and the planet for the better by demanding that going green saves you money.

There is a new wave of environmental consumers I like to call Pocketbook Environmentalists. They're going green primarily because it makes good financial sense, but the fact that it benefits their families' health and the environment also makes them feel good.