A few of the recent pieces I've liked:
Osha Gray Davidson in Rolling Stone: The Great Burning: How Wildfires Are Threatening the West
Courtney Subramanian at TIME's Healthland blog: Rebranding Climate Change as a Public Health Issue
Harold Pollack at Washington Post's Wonkblog: 85 million Americans lack dental coverage. Fixing that requires more than just money.
Abraham Lustgarten at ProPublica: Unfair Share: How Oil and Gas Drillers Avoid Paying Royalties
Heather Rousseau at NPR's Shots blog: In Rural Uganda, Homemade Bikes Make the Best Ambulances