Hate and bigotry can dominate, perhaps even rule for a time, but they never win out because God is ultimately in charge, prodding along our humanity as we reluctantly advance. If you are waiting for "signs" of redemption, for God to write a message across the sky in white fluffy clouds, then you are part of the problem.
Too often climate advocates stop at apocalypse. If we don't change everything now, or "yesterday," as one scientist said recently, we're toast. Or drowned. Or something, really, really bad. The problem with this kind of message, research has shown, is that most people basically tune out right about then.