You have to cover your house with something. Whatever you choose will have some effect on the environment, be it brick, wood, aluminum, or even a blue plastic "tarp".
Have I mentioned that I HATE painting yet?
We bought a new home a little over one year ago. It's 2/3rds brick exterior, with vinyl clad windows, Vinyl siding and a standing seam copper roof. I plan on NO painting and very little exterior maint. My personal "environment" will be much happier and healthier now, due to me not having to prep and paint every few years. In my eyes, vinyl is the real deal. And I'm a 4th generation carpenter.
NO WOOD ON THE OUTSIDE OF MY HOUSE!