Jacques, true what you say, but when last did you see people unite for something they cannot make a profit off. We were all brought up with the mind think of: One for all and nothing for the rest". If you sit in a comfortable home, Aircon, nice car etc etc, why would you complain and why would you start using a bicycle to work, plant trees instead of thinking what type of development you can put up on the empty piece of land. We are of the thinking that " we worked hard for what we have and we deserve it- stuff the rest".
Maybe not all but surely the majority of us. Good example: "We all know about Energy lamps, but how many of us have still got Downlighters/Normal Globes/ spotlights outside, etc running in our homes????"
Or do we really turn lights off when we leave a room. Look to the Ceilings of some office Blocks, are all those Lights really necessary during daytime???
We all have a part to play in bringing Global Warming down, We do not really have to support a restaurant serving scarce fish species etc, but that is the way we live our lifes. Unfortunately/Fortunately it'll have to change