I didn't get the black/green dot as a symbol. I get that once people have been told what it is they'll start thinking "climate change", but is this really going to change the mind of the deniers?<p>When I was growing up in Canada, we had a public service announcement of an owl saying, quite simply "give a hoot, don't pollute".<p>Doesn't something simple like that say it all? Can climate deniers really argue with that? We have an environment, keep it clean. End of story.