World-renowned climate activist Bill McKibben has good news: we now know how to catch the sun’s rays, giving us plentiful and inexpensive energy. This is faster than any energy transition in history — and it may be the only remaining chance to slow down the rapid heating of the earth. Here & Now co-host Robin Young moderates a conversation with McKibben about his new book, “Here Comes the Sun” and our chance not just to limit climate change’s damage, but to reorder the world on saner and more humane grounds.