The actual title of the article published by the Pew Research Center is America’s Changing Religious Landscape. You can read that article here, at their own website, rather than second or third hand if you wish. The story was reported by media outlets, such as CNN, with attention grabbing headlines like “Millennials Are Leaving the Church in Droves.”
Russell Moore takes a different perspective, suggesting that actual faith is not in decline but rather the false pretense of it. People without true faith have quit going to church to make a show. He suggests people are no longer attracted to “almost Christianity” but that real faith is alive and well. There are not more atheists than there used to be, there are more honest atheists. Please do read his article here.
Ed Stetzer posted a similar story in USA Today, arguing that while Evangelicals make up a smaller percentage of the population than they did a few years ago their overall numbers have actually grown. While I think Moore’s article is better written, both make the point that raw data doesn’t tell the whole story. How we interpret that data is equally if not more important.