Your link provides the answer: "She is president of The Turning Tide Coalition: a coalition of social justice, environmental and consciousness organizations."
That is what the TTC is - "the Turning Tide Coalition, a gathering of like-minded organizations committed to global sustainability" (that came from my second google hit, and the following from my sixth [my underlining added]).
"Some are stepping out of the cycle, realizing the perfection of the moment when they can say, "Enough." Twist has gathered twelve leaders of social innovator organizations to maintain that conversation, to uncover what is needed for social and cultural transformation. Calling it the Turning Tide Coalition, Twist observes, "If we can see and say the tide is turning, in all kinds of arenas we all care about, that galvanizes people to participate in turning the tide faster. We have to be bold and courageous and take a stand that, by God, the tide is turning and you can be part of it. The goal of the Turning Tide Coalition is to take that stand, to herald the turning tide, and to ignite a conversation for people's participation."
As apex 2000 said, "I wonder if you have made any attempt to find about your subject through the internet. Clearly we cannot be expected to do research if you cannot find out more yourself". I did it this time just to confirm that the information was easy to find. I am not going to do it again.