Few people appreciate just how badly our society will suffer under likely climate change. We are on the verge of unleashing runaway changes, wherein nature's forces accelerate the impacts of humanity's emissions, and we get cascading, unstoppable change. This is important to understand, for we will leave an earth a far diminished place, with many parts unrecognizable. Avoiding such a fate is possible, but only with rapid, serious actions. Presenting climate dangers at length, and without an antidote, just leaves depression in the wake. An emerging story is positive: There are new technologies growing at an astounding pace that can reverse CO2 emissions trends. Recent developments in Germany, Denmark, and China and several US states show the potential. This story begins darkly, but transitions to a discovery of solutions that can help build a much more useful conversation on climate change. Speakers: James Fallows, Hal Harvey