Washington Post: No one doubts that human-induced climate change has been killing corals across the globe. The question is whether humans can help save them before the devastation is complete. For decades, rising sea surface temperatures have been driving out and killing the algae, called zooxanthellae, that give reefs their often-spectacular color. That has left behind the lifeless, bleached skeletons built by clustered colonies of thousands of corals. Meanwhile, the oceans’ growing acidity, caused …