With the COP21 climate change conference on center stage these next few weeks, it takes a good dose of optimism that collective gains will be made for the mutual benefit of people, places and the planet. But even with a promising agenda and the might of world leaders, you’ve got to wonder how many times do you hit the same brick wall before you say stop; side step it; and move onto a course that doesn’t get stuck in an unchanged, déjà vu debate.