![Stories of the Week | PBS NewsHour Podcast | PBS show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/011/424/small/stories-of-the-week-newshour-with-jim-lehrer-podcast-pbs.jpg)
Summary: In addition to negative consequences caused by overfishing and pollution, coral reefs face another major existential threat: increased acidity from warming oceans. Hari Sreenivasan reports from Florida about the dire outlook for coral reefs, as well as efforts and research to try and save them.